{"title":"AGM BATTERY","description":"","products":[{"product_id":"a","title":"SP 100A AGM BATTERY LONG LIFE SPL (UNIT PRICE)","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid #262626;border-radius:10px}.sp4 .vids figcaption{font-size:10.5px;letter-spacing:1.4px;color:#9d9d9d;text-transform:uppercase;padding:9px 2px 0;text-align:center}.sp4 .vids figcaption b{color:#E8560F}.sp4 .rea{display:flex;flex-wrap:wrap;gap:8px;padding-top:6px;padding-bottom:4px}.sp4 .rea span{flex:1 1 150px;background:#161616;border:1px solid #262626;border-left:3px solid #E8560F;padding:9px 11px;font-size:10.5px;font-weight:800;letter-spacing:1.2px;color:#d6d6d6;text-transform:uppercase}.sp4 .top{display:flex;align-items:center;justify-content:space-between;gap:14px}.sp4 .top img{width:186px;height:105px;flex:0 0 auto}.sp4 .trust{display:flex;flex-wrap:wrap;gap:8px;padding:8px 22px 0}.sp4 .trust span{flex:1 1 165px;background:#111;border:1px solid #232323;padding:8px 10px;font-size:10px;font-weight:800;letter-spacing:1.1px;color:#9d9d9d;text-transform:uppercase}.sp4 .trust b{color:#E8560F;font-weight:800}.sp4 .paym{padding:14px 22px 2px;font-size:9.5px;font-weight:800;letter-spacing:1.7px;line-height:1.8;color:#7a7a7a;text-transform:uppercase;text-align:center}@media screen and (min-width:1000px){.product{row-gap:0!important}.product-info{display:contents!important}.product-gallery{grid-column:1!important;grid-row:1\/span 99!important}.product-info__block-item{grid-column:2!important}.product-info__block-item[data-block-type=description]{grid-column:1\/-1!important;grid-row:100!important;margin-top:44px!important}.sp4{font-size:17px}.sp4 .in,.sp4 .top,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .paym,.sp4 .fine,.sp4 .swipe,.sp4 .pnl,.sp4 .trust{padding-left:40px;padding-right:40px}.sp4 .frame,.sp4 .quote,.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:40px;margin-right:40px}.sp4 h2.big{font-size:66px}.sp4 .sub{max-width:66ch;font-size:17px}.sp4 .band b{font-size:46px}.sp4 .card{flex:1 1 300px}.sp4 .cards{gap:14px}.sp4 .pnl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.sp4 .tw,.sp4 .warn,.sp4 .sup{max-width:1040px;margin-left:auto;margin-right:auto}.sp4 .dl{max-width:780px;margin-left:auto;margin-right:auto}.sp4 .quote{max-width:1150px}.sp4 .faq{columns:2;column-gap:40px}.sp4 .faq div{break-inside:avoid}.sp4 .sec{margin-top:48px}.sp4 .swipe figure{flex:0 0 330px;max-width:330px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eVRLA AGM · 12 V · sealed, maintenance-free\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e100 Ah.\u003cbr\u003e\u003cem\u003e1800 A CCA.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-100A is a 12 V VRLA AGM battery built to power high-output car audio and SPL systems. Very low internal resistance: it delivers within milliseconds the current peaks your amplifiers demand on bass transients and keeps the system voltage more stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e100\u003ci\u003eAh\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eRATED CAPACITY · C10\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e1800\u003ci\u003eA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eCOLD CRANKING · CCA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e7000\u003ci\u003eW\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePOWER\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\"\u003e\n\u003cspan\u003eFree shipping\u003c\/span\u003e\u003cspan\u003eDispatched from Italy in 24–48 working hours\u003c\/span\u003e\u003cspan\u003e1-year warranty on manufacturing defects\u003c\/span\u003e\u003cspan\u003eFree technical support from Italy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003eSP AGM BATTERY · TECHNICAL MANUAL · 15 PAGES\u003c\/div\u003e\n\u003cp\u003eAGM technology, state of charge, charging, installation, storage, safety, troubleshooting and the 1-year warranty.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-AGM-BATTERY-Manual-EN-2026.pdf?v=1791071941\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Open the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy AGM\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pnl\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eInstant high current\u003c\/b\u003e\u003cp\u003eLow internal resistance: high current peaks with minimal voltage drop, ideal for bass transients.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eSealed, maintenance-free\u003c\/b\u003e\u003cp\u003eElectrolyte absorbed in glass-fibre separators: no topping up, no free liquid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eCompact construction\u003c\/b\u003e\u003cp\u003ePlates and separators compressed inside the case: a sturdy build suited to vehicle use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eGas recombination\u003c\/b\u003e\u003cp\u003eWater is not consumed in normal use: the battery stays sealed for its whole life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eSP-100A · CODE 1997\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eVRLA AGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated capacity (C10)\u003c\/td\u003e\n\u003ctd\u003e100 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold cranking amps (CCA)\u003c\/td\u003e\n\u003ctd\u003e1800 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse cranking current\u003c\/td\u003e\n\u003ctd\u003e3200 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-circuit current\u003c\/td\u003e\n\u003ctd\u003e6000 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e7000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions L × W × H\u003c\/td\u003e\n\u003ctd\u003e350 × 165 × 190 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eUnit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eCHARGING PARAMETERS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsorption voltage\u003c\/td\u003e\n\u003ctd\u003e14.4 – 14.7 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat (maintenance) voltage\u003c\/td\u003e\n\u003ctd\u003e13.5 – 13.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum permitted voltage (alternator included)\u003c\/td\u003e\n\u003ctd\u003e14.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax recommended charge current (0.2 C)\u003c\/td\u003e\n\u003ctd\u003e20 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature compensation (if available)\u003c\/td\u003e\n\u003ctd\u003e≈ −24 mV\/°C from 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrozen battery, or hot to the touch\u003c\/td\u003e\n\u003ctd\u003eDO NOT charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eC10: CHARGE DELIVERED OVER A 10-HOUR DISCHARGE AT 25 °C · CCA: AT −18 °C FOR 30 S HOLDING AT LEAST 7.2 V (SAE) · PULSE AND SHORT-CIRCUIT ARE LABORATORY PEAK VALUES, NOT WORKING CURRENTS\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eRead the state of charge\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eREST VOLTAGE\u003c\/th\u003e\n\u003cth\u003eCHARGE\u003c\/th\u003e\n\u003cth\u003eWHAT TO DO\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e≥ 12.80 V\u003c\/td\u003e\n\u003ctd\u003e100 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eFully charged. Ready to use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.55 V\u003c\/td\u003e\n\u003ctd\u003e≈ 75 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eGood. Recharge at the next opportunity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.30 V\u003c\/td\u003e\n\u003ctd\u003e≈ 50 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eRecharge now: do not leave it in this state.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.00 V\u003c\/td\u003e\n\u003ctd\u003e≈ 25 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eDischarged. Recharge immediately with an AGM charger.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e≤ 11.80 V\u003c\/td\u003e\n\u003ctd\u003e≈ 0 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eFully discharged: risk of sulphation. Recharge within a few hours.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u0026lt; 10.5 V\u003c\/td\u003e\n\u003ctd\u003eDeep discharge\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eProbable, irreversible damage. Not covered by warranty.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eINDICATIVE VALUES AT 25 °C, MEASURED ON THE POSTS WITH A DIGITAL MULTIMETER AFTER AT LEAST 6 HOURS OF REST\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eCharge it right\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eSmart charger with an AGM program. Nothing else.\u003c\/b\u003e\u003cp\u003eBulk at constant current, absorption at 14.4–14.7 V, then float at 13.5–13.8 V to offset self-discharge without overcharging. Every valve opening caused by overcharging releases gas and water that cannot be replaced.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eForbidden:\u003c\/b\u003e jump starters (boosters), truck chargers, fast chargers, unregulated power supplies, GEL programs and high-voltage “desulphation\/recondition” modes not intended for AGM.\u003cbr\u003e\u003cb\u003eAlternator:\u003c\/b\u003e with the engine running, typically 13.8–14.8 V at the terminals. After long listening sessions with the engine off, always finish with the charger.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-55a\"\u003e\u003csmall\u003eSP AGM BATTERY · 55 Ah\u003c\/small\u003e\u003cstrong\u003eSP-55A — 850 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-29\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 29 — 4 × 0\/4 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-01\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 01 — 0 \/ 4 \/ 8 GA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBoot or cabin, never the engine bay\u003c\/b\u003e in high-performance systems: away from engine, exhaust and heat sources. Every 10 °C above 25 °C halves the expected life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOne fuse (ANL \/ mini ANL) on the positive of each battery\u003c\/b\u003e, within 30 cm of the post and sized to the cable gauge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure it with strong brackets or straps\u003c\/b\u003e: it must not move under braking or in a collision. Do not enclose it in airtight boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConnect the positive first, then the negative\u003c\/b\u003e; to disconnect, remove the negative first. Ignition and system off, no metal tools on the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIn parallel, only identical batteries\u003c\/b\u003e: same model, age and state of charge, each fully charged first, link cables of equal length and gauge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e07\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow do I check the state of charge?\u003c\/b\u003eMeasure the rest voltage on the posts with a digital multimeter, after at least 6 hours with no loads or charger connected. 12.80 V or more is fully charged, 12.30 V is about 50 %: recharge now.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich charger should I use?\u003c\/b\u003eAn electronic smart charger with an AGM program: absorption 14.4–14.7 V, float 13.5–13.8 V. Maximum recommended charge current for the SP-100A: 20 A (0.2 C). Never boosters or fast chargers.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eCan I install it in the engine bay?\u003c\/b\u003eNot in high-performance systems. The engine bay easily exceeds 60 °C and heat halves the expected life every 10 °C above 25 °C: install it in the boot or in the cabin.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMy system needs more power. What do I do?\u003c\/b\u003eConnect several identical batteries in parallel: same model, age and state of charge, each fully charged first, with link cables of equal length and gauge and one fuse on each positive.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat does the warranty cover?\u003c\/b\u003e1 year (12 months) from the date of purchase, against defects in materials and workmanship, confirmed by technical inspection. Deep discharge, overcharging, boosters, heat and mechanical damage are not covered.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, number of batteries, cable runs — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I check the state of charge (SP-100A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Measure the rest voltage on the posts with a digital multimeter, after at least 6 hours with no loads or charger connected. 12.80 V or more is fully charged, 12.30 V is about 50 %: recharge now.\"}}, {\"@type\": \"Question\", \"name\": \"Which charger should I use (SP-100A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An electronic smart charger with an AGM program: absorption 14.4–14.7 V, float 13.5–13.8 V. Maximum recommended charge current for the SP-100A: 20 A (0.2 C). Never boosters or fast chargers.\"}}, {\"@type\": \"Question\", \"name\": \"Can I install it in the engine bay (SP-100A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Not in high-performance systems. The engine bay easily exceeds 60 °C and heat halves the expected life every 10 °C above 25 °C: install it in the boot or in the cabin.\"}}, {\"@type\": \"Question\", \"name\": \"My system needs more power. What do I do (SP-100A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Connect several identical batteries in parallel: same model, age and state of charge, each fully charged first, with link cables of equal length and gauge and one fuse on each positive.\"}}, {\"@type\": \"Question\", \"name\": \"What does the warranty cover (SP-100A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"1 year (12 months) from the date of purchase, against defects in materials and workmanship, confirmed by technical inspection. Deep discharge, overcharging, boosters, heat and mechanical damage are not covered.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":42962546163924,"sku":"1997","price":429.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_26dc9cb8-4e7a-4247-a081-a4afccc4eb82.webp?v=1773058688"},{"product_id":"sp-55a","title":"SP 55A AGM BATTERY LONG LIFE SPL (UNIT PRICE)","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid #262626;border-radius:10px}.sp4 .vids figcaption{font-size:10.5px;letter-spacing:1.4px;color:#9d9d9d;text-transform:uppercase;padding:9px 2px 0;text-align:center}.sp4 .vids figcaption b{color:#E8560F}.sp4 .rea{display:flex;flex-wrap:wrap;gap:8px;padding-top:6px;padding-bottom:4px}.sp4 .rea span{flex:1 1 150px;background:#161616;border:1px solid #262626;border-left:3px solid #E8560F;padding:9px 11px;font-size:10.5px;font-weight:800;letter-spacing:1.2px;color:#d6d6d6;text-transform:uppercase}.sp4 .top{display:flex;align-items:center;justify-content:space-between;gap:14px}.sp4 .top img{width:186px;height:105px;flex:0 0 auto}.sp4 .trust{display:flex;flex-wrap:wrap;gap:8px;padding:8px 22px 0}.sp4 .trust span{flex:1 1 165px;background:#111;border:1px solid #232323;padding:8px 10px;font-size:10px;font-weight:800;letter-spacing:1.1px;color:#9d9d9d;text-transform:uppercase}.sp4 .trust b{color:#E8560F;font-weight:800}.sp4 .paym{padding:14px 22px 2px;font-size:9.5px;font-weight:800;letter-spacing:1.7px;line-height:1.8;color:#7a7a7a;text-transform:uppercase;text-align:center}@media screen and (min-width:1000px){.product{row-gap:0!important}.product-info{display:contents!important}.product-gallery{grid-column:1!important;grid-row:1\/span 99!important}.product-info__block-item{grid-column:2!important}.product-info__block-item[data-block-type=description]{grid-column:1\/-1!important;grid-row:100!important;margin-top:44px!important}.sp4{font-size:17px}.sp4 .in,.sp4 .top,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .paym,.sp4 .fine,.sp4 .swipe,.sp4 .pnl,.sp4 .trust{padding-left:40px;padding-right:40px}.sp4 .frame,.sp4 .quote,.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:40px;margin-right:40px}.sp4 h2.big{font-size:66px}.sp4 .sub{max-width:66ch;font-size:17px}.sp4 .band b{font-size:46px}.sp4 .card{flex:1 1 300px}.sp4 .cards{gap:14px}.sp4 .pnl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.sp4 .tw,.sp4 .warn,.sp4 .sup{max-width:1040px;margin-left:auto;margin-right:auto}.sp4 .dl{max-width:780px;margin-left:auto;margin-right:auto}.sp4 .quote{max-width:1150px}.sp4 .faq{columns:2;column-gap:40px}.sp4 .faq div{break-inside:avoid}.sp4 .sec{margin-top:48px}.sp4 .swipe figure{flex:0 0 330px;max-width:330px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eVRLA AGM · 12 V · sealed, maintenance-free\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e55 Ah.\u003cbr\u003e\u003cem\u003e850 A CCA.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-55A is a 12 V VRLA AGM battery built to power high-output car audio and SPL systems. Very low internal resistance: it delivers within milliseconds the current peaks your amplifiers demand on bass transients and keeps the system voltage more stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e55\u003ci\u003eAh\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eRATED CAPACITY · C10\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e850\u003ci\u003eA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eCOLD CRANKING · CCA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e3500\u003ci\u003eW\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePOWER\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\"\u003e\n\u003cspan\u003eFree shipping\u003c\/span\u003e\u003cspan\u003eDispatched from Italy in 24–48 working hours\u003c\/span\u003e\u003cspan\u003e1-year warranty on manufacturing defects\u003c\/span\u003e\u003cspan\u003eFree technical support from Italy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003eSP AGM BATTERY · TECHNICAL MANUAL · 15 PAGES\u003c\/div\u003e\n\u003cp\u003eAGM technology, state of charge, charging, installation, storage, safety, troubleshooting and the 1-year warranty.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-AGM-BATTERY-Manual-EN-2026.pdf?v=1791071941\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Open the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy AGM\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pnl\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eInstant high current\u003c\/b\u003e\u003cp\u003eLow internal resistance: high current peaks with minimal voltage drop, ideal for bass transients.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eSealed, maintenance-free\u003c\/b\u003e\u003cp\u003eElectrolyte absorbed in glass-fibre separators: no topping up, no free liquid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eCompact construction\u003c\/b\u003e\u003cp\u003ePlates and separators compressed inside the case: a sturdy build suited to vehicle use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eGas recombination\u003c\/b\u003e\u003cp\u003eWater is not consumed in normal use: the battery stays sealed for its whole life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eSP-55A · CODE 1999\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eVRLA AGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated capacity (C10)\u003c\/td\u003e\n\u003ctd\u003e55 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold cranking amps (CCA)\u003c\/td\u003e\n\u003ctd\u003e850 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse cranking current\u003c\/td\u003e\n\u003ctd\u003e2000 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-circuit current\u003c\/td\u003e\n\u003ctd\u003e3500 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e3500 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions L × W × H\u003c\/td\u003e\n\u003ctd\u003e195 × 165 × 170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eUnit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eCHARGING PARAMETERS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsorption voltage\u003c\/td\u003e\n\u003ctd\u003e14.4 – 14.7 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat (maintenance) voltage\u003c\/td\u003e\n\u003ctd\u003e13.5 – 13.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum permitted voltage (alternator included)\u003c\/td\u003e\n\u003ctd\u003e14.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax recommended charge current (0.2 C)\u003c\/td\u003e\n\u003ctd\u003e11 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature compensation (if available)\u003c\/td\u003e\n\u003ctd\u003e≈ −24 mV\/°C from 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrozen battery, or hot to the touch\u003c\/td\u003e\n\u003ctd\u003eDO NOT charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eC10: CHARGE DELIVERED OVER A 10-HOUR DISCHARGE AT 25 °C · CCA: AT −18 °C FOR 30 S HOLDING AT LEAST 7.2 V (SAE) · PULSE AND SHORT-CIRCUIT ARE LABORATORY PEAK VALUES, NOT WORKING CURRENTS\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eRead the state of charge\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eREST VOLTAGE\u003c\/th\u003e\n\u003cth\u003eCHARGE\u003c\/th\u003e\n\u003cth\u003eWHAT TO DO\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e≥ 12.80 V\u003c\/td\u003e\n\u003ctd\u003e100 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eFully charged. Ready to use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.55 V\u003c\/td\u003e\n\u003ctd\u003e≈ 75 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eGood. Recharge at the next opportunity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.30 V\u003c\/td\u003e\n\u003ctd\u003e≈ 50 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eRecharge now: do not leave it in this state.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.00 V\u003c\/td\u003e\n\u003ctd\u003e≈ 25 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eDischarged. Recharge immediately with an AGM charger.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e≤ 11.80 V\u003c\/td\u003e\n\u003ctd\u003e≈ 0 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eFully discharged: risk of sulphation. Recharge within a few hours.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u0026lt; 10.5 V\u003c\/td\u003e\n\u003ctd\u003eDeep discharge\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eProbable, irreversible damage. Not covered by warranty.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eINDICATIVE VALUES AT 25 °C, MEASURED ON THE POSTS WITH A DIGITAL MULTIMETER AFTER AT LEAST 6 HOURS OF REST\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eCharge it right\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eSmart charger with an AGM program. Nothing else.\u003c\/b\u003e\u003cp\u003eBulk at constant current, absorption at 14.4–14.7 V, then float at 13.5–13.8 V to offset self-discharge without overcharging. Every valve opening caused by overcharging releases gas and water that cannot be replaced.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eForbidden:\u003c\/b\u003e jump starters (boosters), truck chargers, fast chargers, unregulated power supplies, GEL programs and high-voltage “desulphation\/recondition” modes not intended for AGM.\u003cbr\u003e\u003cb\u003eAlternator:\u003c\/b\u003e with the engine running, typically 13.8–14.8 V at the terminals. After long listening sessions with the engine off, always finish with the charger.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/a\"\u003e\u003csmall\u003eSP AGM BATTERY · 100 Ah\u003c\/small\u003e\u003cstrong\u003eSP-100A — 1800 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-29\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 29 — 4 × 0\/4 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-01\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 01 — 0 \/ 4 \/ 8 GA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBoot or cabin, never the engine bay\u003c\/b\u003e in high-performance systems: away from engine, exhaust and heat sources. Every 10 °C above 25 °C halves the expected life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOne fuse (ANL \/ mini ANL) on the positive of each battery\u003c\/b\u003e, within 30 cm of the post and sized to the cable gauge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure it with strong brackets or straps\u003c\/b\u003e: it must not move under braking or in a collision. Do not enclose it in airtight boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConnect the positive first, then the negative\u003c\/b\u003e; to disconnect, remove the negative first. Ignition and system off, no metal tools on the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIn parallel, only identical batteries\u003c\/b\u003e: same model, age and state of charge, each fully charged first, link cables of equal length and gauge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e07\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow do I check the state of charge?\u003c\/b\u003eMeasure the rest voltage on the posts with a digital multimeter, after at least 6 hours with no loads or charger connected. 12.80 V or more is fully charged, 12.30 V is about 50 %: recharge now.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich charger should I use?\u003c\/b\u003eAn electronic smart charger with an AGM program: absorption 14.4–14.7 V, float 13.5–13.8 V. Maximum recommended charge current for the SP-55A: 11 A (0.2 C). Never boosters or fast chargers.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eCan I install it in the engine bay?\u003c\/b\u003eNot in high-performance systems. The engine bay easily exceeds 60 °C and heat halves the expected life every 10 °C above 25 °C: install it in the boot or in the cabin.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMy system needs more power. What do I do?\u003c\/b\u003eConnect several identical batteries in parallel: same model, age and state of charge, each fully charged first, with link cables of equal length and gauge and one fuse on each positive.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat does the warranty cover?\u003c\/b\u003e1 year (12 months) from the date of purchase, against defects in materials and workmanship, confirmed by technical inspection. Deep discharge, overcharging, boosters, heat and mechanical damage are not covered.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, number of batteries, cable runs — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I check the state of charge (SP-55A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Measure the rest voltage on the posts with a digital multimeter, after at least 6 hours with no loads or charger connected. 12.80 V or more is fully charged, 12.30 V is about 50 %: recharge now.\"}}, {\"@type\": \"Question\", \"name\": \"Which charger should I use (SP-55A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An electronic smart charger with an AGM program: absorption 14.4–14.7 V, float 13.5–13.8 V. Maximum recommended charge current for the SP-55A: 11 A (0.2 C). Never boosters or fast chargers.\"}}, {\"@type\": \"Question\", \"name\": \"Can I install it in the engine bay (SP-55A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Not in high-performance systems. The engine bay easily exceeds 60 °C and heat halves the expected life every 10 °C above 25 °C: install it in the boot or in the cabin.\"}}, {\"@type\": \"Question\", \"name\": \"My system needs more power. What do I do (SP-55A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Connect several identical batteries in parallel: same model, age and state of charge, each fully charged first, with link cables of equal length and gauge and one fuse on each positive.\"}}, {\"@type\": \"Question\", \"name\": \"What does the warranty cover (SP-55A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"1 year (12 months) from the date of purchase, against defects in materials and workmanship, confirmed by technical inspection. Deep discharge, overcharging, boosters, heat and mechanical damage are not covered.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":42962551144660,"sku":"1999","price":199.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_8b5c22b9-6fb9-4bfd-9442-8d2d9dc0e5e2.webp?v=1773058824"},{"product_id":"sp-80a","title":"SP 80A AGM BATTERY LONG LIFE SPL (UNIT PRICE)","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid #262626;border-radius:10px}.sp4 .vids figcaption{font-size:10.5px;letter-spacing:1.4px;color:#9d9d9d;text-transform:uppercase;padding:9px 2px 0;text-align:center}.sp4 .vids figcaption b{color:#E8560F}.sp4 .rea{display:flex;flex-wrap:wrap;gap:8px;padding-top:6px;padding-bottom:4px}.sp4 .rea span{flex:1 1 150px;background:#161616;border:1px solid #262626;border-left:3px solid #E8560F;padding:9px 11px;font-size:10.5px;font-weight:800;letter-spacing:1.2px;color:#d6d6d6;text-transform:uppercase}.sp4 .top{display:flex;align-items:center;justify-content:space-between;gap:14px}.sp4 .top img{width:186px;height:105px;flex:0 0 auto}.sp4 .trust{display:flex;flex-wrap:wrap;gap:8px;padding:8px 22px 0}.sp4 .trust span{flex:1 1 165px;background:#111;border:1px solid #232323;padding:8px 10px;font-size:10px;font-weight:800;letter-spacing:1.1px;color:#9d9d9d;text-transform:uppercase}.sp4 .trust b{color:#E8560F;font-weight:800}.sp4 .paym{padding:14px 22px 2px;font-size:9.5px;font-weight:800;letter-spacing:1.7px;line-height:1.8;color:#7a7a7a;text-transform:uppercase;text-align:center}@media screen and (min-width:1000px){.product{row-gap:0!important}.product-info{display:contents!important}.product-gallery{grid-column:1!important;grid-row:1\/span 99!important}.product-info__block-item{grid-column:2!important}.product-info__block-item[data-block-type=description]{grid-column:1\/-1!important;grid-row:100!important;margin-top:44px!important}.sp4{font-size:17px}.sp4 .in,.sp4 .top,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .paym,.sp4 .fine,.sp4 .swipe,.sp4 .pnl,.sp4 .trust{padding-left:40px;padding-right:40px}.sp4 .frame,.sp4 .quote,.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:40px;margin-right:40px}.sp4 h2.big{font-size:66px}.sp4 .sub{max-width:66ch;font-size:17px}.sp4 .band b{font-size:46px}.sp4 .card{flex:1 1 300px}.sp4 .cards{gap:14px}.sp4 .pnl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.sp4 .tw,.sp4 .warn,.sp4 .sup{max-width:1040px;margin-left:auto;margin-right:auto}.sp4 .dl{max-width:780px;margin-left:auto;margin-right:auto}.sp4 .quote{max-width:1150px}.sp4 .faq{columns:2;column-gap:40px}.sp4 .faq div{break-inside:avoid}.sp4 .sec{margin-top:48px}.sp4 .swipe figure{flex:0 0 330px;max-width:330px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eVRLA AGM · 12 V · sealed, maintenance-free\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e80 Ah.\u003cbr\u003e\u003cem\u003e1100 A CCA.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-80A is a 12 V VRLA AGM battery built to power high-output car audio and SPL systems. Very low internal resistance: it delivers within milliseconds the current peaks your amplifiers demand on bass transients and keeps the system voltage more stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e80\u003ci\u003eAh\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eRATED CAPACITY · C10\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e1100\u003ci\u003eA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eCOLD CRANKING · CCA\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e5000\u003ci\u003eW\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePOWER\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\"\u003e\n\u003cspan\u003eFree shipping\u003c\/span\u003e\u003cspan\u003eDispatched from Italy in 24–48 working hours\u003c\/span\u003e\u003cspan\u003e1-year warranty on manufacturing defects\u003c\/span\u003e\u003cspan\u003eFree technical support from Italy\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003eSP AGM BATTERY · TECHNICAL MANUAL · 15 PAGES\u003c\/div\u003e\n\u003cp\u003eAGM technology, state of charge, charging, installation, storage, safety, troubleshooting and the 1-year warranty.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-AGM-BATTERY-Manual-EN-2026.pdf?v=1791071941\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Open the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy AGM\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pnl\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eInstant high current\u003c\/b\u003e\u003cp\u003eLow internal resistance: high current peaks with minimal voltage drop, ideal for bass transients.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eSealed, maintenance-free\u003c\/b\u003e\u003cp\u003eElectrolyte absorbed in glass-fibre separators: no topping up, no free liquid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eCompact construction\u003c\/b\u003e\u003cp\u003ePlates and separators compressed inside the case: a sturdy build suited to vehicle use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eGas recombination\u003c\/b\u003e\u003cp\u003eWater is not consumed in normal use: the battery stays sealed for its whole life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eSP-80A · CODE 1998\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eVRLA AGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated capacity (C10)\u003c\/td\u003e\n\u003ctd\u003e80 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold cranking amps (CCA)\u003c\/td\u003e\n\u003ctd\u003e1100 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse cranking current\u003c\/td\u003e\n\u003ctd\u003e2600 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-circuit current\u003c\/td\u003e\n\u003ctd\u003e4800 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e5000 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions L × W × H\u003c\/td\u003e\n\u003ctd\u003e255 × 165 × 210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSold as\u003c\/td\u003e\n\u003ctd\u003eUnit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eCHARGING PARAMETERS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsorption voltage\u003c\/td\u003e\n\u003ctd\u003e14.4 – 14.7 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFloat (maintenance) voltage\u003c\/td\u003e\n\u003ctd\u003e13.5 – 13.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum permitted voltage (alternator included)\u003c\/td\u003e\n\u003ctd\u003e14.8 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax recommended charge current (0.2 C)\u003c\/td\u003e\n\u003ctd\u003e16 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature compensation (if available)\u003c\/td\u003e\n\u003ctd\u003e≈ −24 mV\/°C from 25 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrozen battery, or hot to the touch\u003c\/td\u003e\n\u003ctd\u003eDO NOT charge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eC10: CHARGE DELIVERED OVER A 10-HOUR DISCHARGE AT 25 °C · CCA: AT −18 °C FOR 30 S HOLDING AT LEAST 7.2 V (SAE) · PULSE AND SHORT-CIRCUIT ARE LABORATORY PEAK VALUES, NOT WORKING CURRENTS\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eRead the state of charge\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eREST VOLTAGE\u003c\/th\u003e\n\u003cth\u003eCHARGE\u003c\/th\u003e\n\u003cth\u003eWHAT TO DO\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e≥ 12.80 V\u003c\/td\u003e\n\u003ctd\u003e100 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eFully charged. Ready to use.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.55 V\u003c\/td\u003e\n\u003ctd\u003e≈ 75 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eGood. Recharge at the next opportunity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.30 V\u003c\/td\u003e\n\u003ctd\u003e≈ 50 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eRecharge now: do not leave it in this state.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12.00 V\u003c\/td\u003e\n\u003ctd\u003e≈ 25 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eDischarged. Recharge immediately with an AGM charger.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e≤ 11.80 V\u003c\/td\u003e\n\u003ctd\u003e≈ 0 %\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eFully discharged: risk of sulphation. Recharge within a few hours.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u0026lt; 10.5 V\u003c\/td\u003e\n\u003ctd\u003eDeep discharge\u003c\/td\u003e\n\u003ctd style=\"text-align:left;font-weight:400\"\u003eProbable, irreversible damage. Not covered by warranty.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eINDICATIVE VALUES AT 25 °C, MEASURED ON THE POSTS WITH A DIGITAL MULTIMETER AFTER AT LEAST 6 HOURS OF REST\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eCharge it right\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eSmart charger with an AGM program. Nothing else.\u003c\/b\u003e\u003cp\u003eBulk at constant current, absorption at 14.4–14.7 V, then float at 13.5–13.8 V to offset self-discharge without overcharging. Every valve opening caused by overcharging releases gas and water that cannot be replaced.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eForbidden:\u003c\/b\u003e jump starters (boosters), truck chargers, fast chargers, unregulated power supplies, GEL programs and high-voltage “desulphation\/recondition” modes not intended for AGM.\u003cbr\u003e\u003cb\u003eAlternator:\u003c\/b\u003e with the engine running, typically 13.8–14.8 V at the terminals. After long listening sessions with the engine off, always finish with the charger.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-55a\"\u003e\u003csmall\u003eSP AGM BATTERY · 55 Ah\u003c\/small\u003e\u003cstrong\u003eSP-55A — 850 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/a\"\u003e\u003csmall\u003eSP AGM BATTERY · 100 Ah\u003c\/small\u003e\u003cstrong\u003eSP-100A — 1800 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-29\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 29 — 4 × 0\/4 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-01\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 01 — 0 \/ 4 \/ 8 GA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBoot or cabin, never the engine bay\u003c\/b\u003e in high-performance systems: away from engine, exhaust and heat sources. Every 10 °C above 25 °C halves the expected life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOne fuse (ANL \/ mini ANL) on the positive of each battery\u003c\/b\u003e, within 30 cm of the post and sized to the cable gauge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure it with strong brackets or straps\u003c\/b\u003e: it must not move under braking or in a collision. Do not enclose it in airtight boxes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConnect the positive first, then the negative\u003c\/b\u003e; to disconnect, remove the negative first. Ignition and system off, no metal tools on the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIn parallel, only identical batteries\u003c\/b\u003e: same model, age and state of charge, each fully charged first, link cables of equal length and gauge.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e07\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow do I check the state of charge?\u003c\/b\u003eMeasure the rest voltage on the posts with a digital multimeter, after at least 6 hours with no loads or charger connected. 12.80 V or more is fully charged, 12.30 V is about 50 %: recharge now.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich charger should I use?\u003c\/b\u003eAn electronic smart charger with an AGM program: absorption 14.4–14.7 V, float 13.5–13.8 V. Maximum recommended charge current for the SP-80A: 16 A (0.2 C). Never boosters or fast chargers.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eCan I install it in the engine bay?\u003c\/b\u003eNot in high-performance systems. The engine bay easily exceeds 60 °C and heat halves the expected life every 10 °C above 25 °C: install it in the boot or in the cabin.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMy system needs more power. What do I do?\u003c\/b\u003eConnect several identical batteries in parallel: same model, age and state of charge, each fully charged first, with link cables of equal length and gauge and one fuse on each positive.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat does the warranty cover?\u003c\/b\u003e1 year (12 months) from the date of purchase, against defects in materials and workmanship, confirmed by technical inspection. Deep discharge, overcharging, boosters, heat and mechanical damage are not covered.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, number of batteries, cable runs — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I check the state of charge (SP-80A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Measure the rest voltage on the posts with a digital multimeter, after at least 6 hours with no loads or charger connected. 12.80 V or more is fully charged, 12.30 V is about 50 %: recharge now.\"}}, {\"@type\": \"Question\", \"name\": \"Which charger should I use (SP-80A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"An electronic smart charger with an AGM program: absorption 14.4–14.7 V, float 13.5–13.8 V. Maximum recommended charge current for the SP-80A: 16 A (0.2 C). Never boosters or fast chargers.\"}}, {\"@type\": \"Question\", \"name\": \"Can I install it in the engine bay (SP-80A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Not in high-performance systems. The engine bay easily exceeds 60 °C and heat halves the expected life every 10 °C above 25 °C: install it in the boot or in the cabin.\"}}, {\"@type\": \"Question\", \"name\": \"My system needs more power. What do I do (SP-80A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Connect several identical batteries in parallel: same model, age and state of charge, each fully charged first, with link cables of equal length and gauge and one fuse on each positive.\"}}, {\"@type\": \"Question\", \"name\": \"What does the warranty cover (SP-80A)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"1 year (12 months) from the date of purchase, against defects in materials and workmanship, confirmed by technical inspection. Deep discharge, overcharging, boosters, heat and mechanical damage are not covered.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":42962551341268,"sku":"1998","price":339.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_caf9db9e-9e71-4b26-b5c3-0a845cab1204.webp?v=1773058762"},{"product_id":"sp-bt-01","title":"SP-BT 01 . BATTERY TERMINAL","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid 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.pnl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px}.sp4 .tw,.sp4 .warn,.sp4 .sup{max-width:1040px;margin-left:auto;margin-right:auto}.sp4 .dl{max-width:780px;margin-left:auto;margin-right:auto}.sp4 .quote{max-width:1150px}.sp4 .faq{columns:2;column-gap:40px}.sp4 .faq div{break-inside:avoid}.sp4 .sec{margin-top:48px}.sp4 .swipe figure{flex:0 0 330px;max-width:330px}}.sp4 a{text-decoration:none!important}.sp4 .pair a{color:inherit}.sp4 td{vertical-align:top}@media(max-width:749px){.sp4{font-size:15.5px}.sp4 .in,.sp4 .tags,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .fine{padding-left:16px!important;padding-right:16px!important}.sp4 .trust{padding:8px 16px 0!important}.sp4 .paym{padding:14px 16px 2px!important}.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:16px!important;margin-right:16px!important}.sp4 .top img{width:132px!important;height:auto!important}.sp4 .rg,.sp4 .paym,.sp4 .foot,.sp4 .tags span,.sp4 .pair small,.sp4 .band span,.sp4 th,.sp4 .dl .k{font-size:11px!important;letter-spacing:1px!important}.sp4 .pill{white-space:normal!important;font-size:11px!important;line-height:1.45!important;letter-spacing:1.2px!important}.sp4 h2.big{font-size:clamp(30px,9vw,40px)!important}.sp4 .rea,.sp4 .trust{display:grid!important;grid-template-columns:1fr 1fr!important;gap:6px!important}.sp4 .rea span,.sp4 .trust span{font-size:11px!important;letter-spacing:.7px!important;line-height:1.35!important;padding:9px!important;min-height:44px;display:flex;align-items:center;gap:4px}.sp4 .card{flex:1 1 100%!important}.sp4 .cw\u003ediv{flex:1 1 100%!important;padding:16px!important}.sp4 .dl a,.sp4 .dl a\u003espan,.sp4 .dl a span[style*=inline-block]{display:block!important}.sp4 .dl a span[style*=inline-block]{padding:15px 14px!important;font-size:15px!important;text-align:center}.sp4 table{font-size:14px!important}.sp4 td{padding:8px 12px!important;overflow-wrap:anywhere}.sp4 td:first-child{width:44%}.sp4 .pair a{flex:1 1 100%!important;min-height:52px;border-left:3px solid #E8560F!important}.sp4 .faq{columns:auto!important}.sp4 .sup a{display:inline-block;padding:10px 0;min-height:44px;line-height:24px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eBattery terminal set · + \/ − pair · gold-plated\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e1×0 + 1×4 + 2×8 GA.\u003cbr\u003e\u003cem\u003eOne solid hub per post.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-BT 01 is a gold-plated battery terminal set that turns the battery posts of your vehicle into a clean, low-resistance power hub. Each terminal clamps onto the post and offers four direct-insert cable ports, so the main feed, the amplifier feeds and the accessory feeds all start from one solid point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e4\u003ci\u003ePORTS\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePER TERMINAL · 8 ON THE PAIR\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e0\u003ci\u003eGA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eLARGEST PORT · 53.5 MM²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e17.5\u003ci\u003eMM\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePOST RING · SAE TOP-POST\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e GOLD-PLATED BODY\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e 1×0 + 1×4 + 2×8 GA\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e CLEAR COVERS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy this terminal\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eFour ports on every terminal\u003c\/b\u003e\u003cp\u003eOne 0 GA port for the main feed, one 4 GA port for a second amplifier and two 8 GA ports for accessories: no stacked ring lugs on the post.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eGold-plated conductive body\u003c\/b\u003e\u003cp\u003eLow contact resistance and protection against corrosion, for a joint that stays clean in the engine bay.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eNo crimping, no soldering\u003c\/b\u003e\u003cp\u003eEvery port takes a bare stripped conductor and is locked by its own hex set screw on the top face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eFirm grip on the post\u003c\/b\u003e\u003cp\u003eTop-post clamp with bolt and knurled screw. A brass shim is supplied for posts slightly smaller than the ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003ePolarity you cannot miss\u003c\/b\u003e\u003cp\u003eSeparate positive (+) and negative (−) terminals, marked on the top face, each with its own clear insulating cover.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eCompact body\u003c\/b\u003e\u003cp\u003e62 × 52 × 26 mm: easy to fit even in tight engine bays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\" style=\"padding-top: 18px;\"\u003e\n\u003cspan\u003eNegative off first, on last\u003c\/span\u003e\u003cspan\u003eFuse within 20 cm on every positive\u003c\/span\u003e\u003cspan\u003eRight gauge in every port\u003c\/span\u003e\u003cspan\u003eRe-tighten after the first week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003ePROFESSIONAL USER MANUAL · 12 PAGES\u003c\/div\u003e\n\u003cp\u003eSafety, installation step by step, wiring, troubleshooting and the full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-BT-01-Manual-EN-2026.pdf?v=1791979525\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Download the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eTwo terminals, two clear covers, one brass shim.\u003c\/b\u003e\u003cp\u003ePositive terminal (+) and negative terminal (−), marked on the top face · 2 clear insulating covers · 1 brass post shim · user manual. Printed SP-BT 01 carton with the port layout on the front: keep it with the receipt.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eNot included:\u003c\/b\u003e battery, power and ground cables, inline fuses and fuse holders, tools.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eTERMINALS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSP-BT 01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBattery terminal set, positive + negative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable ports per terminal\u003c\/td\u003e\n\u003ctd\u003e1×0 GA + 1×4 GA + 2×8 GA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal ports (pair)\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery post\u003c\/td\u003e\n\u003ctd\u003eSAE top-post, Ø 17.5 mm ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping\u003c\/td\u003e\n\u003ctd\u003eBolt + knurled screw on post; hex set screw on every port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody finish\u003c\/td\u003e\n\u003ctd\u003eGold-plated conductive body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation\u003c\/td\u003e\n\u003ctd\u003eClear cover for each terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003ePORTS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0 GA port (1\/0 AWG · 53.5 mm²)\u003c\/td\u003e\n\u003ctd\u003eØ 10.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 GA port (4 AWG · 21.2 mm²)\u003c\/td\u003e\n\u003ctd\u003eØ 7.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 GA ports ×2 (8 AWG · 8.4 mm²)\u003c\/td\u003e\n\u003ctd\u003eØ 5.0 mm each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eDIMENSIONS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL × D × H (without cover)\u003c\/td\u003e\n\u003ctd\u003e62 × 52 × 26 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost hole\u003c\/td\u003e\n\u003ctd\u003eØ 17.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent rating\u003c\/td\u003e\n\u003ctd\u003eNot declared by the manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eMANUFACTURER'S DATA · NOMINAL DIMENSIONS WITHOUT THE CLEAR COVER · CHOOSE CABLE AND FUSE FOR THE ACTUAL LOAD\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-bt-06\"\u003e\u003csmall\u003eSAME PORTS + VOLTMETER\u003c\/small\u003e\u003cstrong\u003eSP-BT 06 — 1×0 + 1×4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-18\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 18 — 2×0\/4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/a\"\u003e\u003csmall\u003eSP AGM BATTERY · 100 Ah\u003c\/small\u003e\u003cstrong\u003eSP-100A — 1800 A CCA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDisconnect the battery first.\u003c\/b\u003e Remove the negative cable first, then the positive. Never let a tool bridge the two posts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuse the positive side.\u003c\/b\u003e An inline fuse within 20 cm of the battery on every cable leaving the positive terminal: it protects the cable, not only the amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCheck the polarity.\u003c\/b\u003e The (+) and (−) terminals are marked on the top face. Reverse polarity destroys electronics and can start a fire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMatch cable and port.\u003c\/b\u003e Never force a larger cable into a port and never trim strands to make it fit: 0 GA, 4 GA, 8 GA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSAE top-post batteries only.\u003c\/b\u003e The SP-BT 01 is not for side-post batteries. Use the brass shim for posts slightly smaller than the ring.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich cables does the SP-BT 01 take?\u003c\/b\u003eOn every terminal: one 0 GA port (53.5 mm²) for the main feed, one 4 GA port (21.2 mm²) for a second amplifier and two 8 GA ports (8.4 mm²) for accessories.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWill it fit my battery?\u003c\/b\u003eIt is made for SAE top-post batteries, with a Ø 17.5 mm clamp ring. A brass shim is supplied for posts slightly smaller than the ring. It does not fit side-post batteries.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eDo I need crimping tools?\u003c\/b\u003eNo. Strip the cable, insert the bare conductor fully in the matching port and tighten the hex set screw. No crimping, no soldering.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat current does it handle?\u003c\/b\u003eThe manufacturer does not declare a current rating for the SP-BT 01. Size the cable and the fuse for the real load of your system: ask us and we will check it with you.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eThe terminal gets warm. Why?\u003c\/b\u003eUsually a loose set screw, a cable that is too small or a corroded post. Switch off, let it cool, re-tighten, check the cable gauge and clean the post.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, cable gauges, number of batteries — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which cables does the SP-BT 01 take?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"On every terminal: one 0 GA port (53.5 mm²) for the main feed, one 4 GA port (21.2 mm²) for a second amplifier and two 8 GA ports (8.4 mm²) for accessories.\"}}, {\"@type\": \"Question\", \"name\": \"Will it fit my battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is made for SAE top-post batteries, with a Ø 17.5 mm clamp ring. A brass shim is supplied for posts slightly smaller than the ring. It does not fit side-post batteries.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need crimping tools?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. Strip the cable, insert the bare conductor fully in the matching port and tighten the hex set screw. No crimping, no soldering.\"}}, {\"@type\": \"Question\", \"name\": \"What current does it handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The manufacturer does not declare a current rating for the SP-BT 01. Size the cable and the fuse for the real load of your system: ask us and we will check it with you.\"}}, {\"@type\": \"Question\", \"name\": \"The terminal gets warm. Why?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Usually a loose set screw, a cable that is too small or a corroded post. Switch off, let it cool, re-tighten, check the cable gauge and clean the post.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":50806287532375,"sku":"79504","price":19.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_84a1b497-0ce1-4366-bb8e-d988ba3863a5.webp?v=1773059095"},{"product_id":"sp-bt-06","title":"SP-BT 06 . BATTERY TERMINAL","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid 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2px;font-size:9.5px;font-weight:800;letter-spacing:1.7px;line-height:1.8;color:#7a7a7a;text-transform:uppercase;text-align:center}@media screen and (min-width:1000px){.product{row-gap:0!important}.product-info{display:contents!important}.product-gallery{grid-column:1!important;grid-row:1\/span 99!important}.product-info__block-item{grid-column:2!important}.product-info__block-item[data-block-type=description]{grid-column:1\/-1!important;grid-row:100!important;margin-top:44px!important}.sp4{font-size:17px}.sp4 .in,.sp4 .top,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .paym,.sp4 .fine,.sp4 .swipe,.sp4 .pnl,.sp4 .trust{padding-left:40px;padding-right:40px}.sp4 .frame,.sp4 .quote,.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:40px;margin-right:40px}.sp4 h2.big{font-size:66px}.sp4 .sub{max-width:66ch;font-size:17px}.sp4 .band b{font-size:46px}.sp4 .card{flex:1 1 300px}.sp4 .cards{gap:14px}.sp4 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.pair small,.sp4 .band span,.sp4 th,.sp4 .dl .k{font-size:11px!important;letter-spacing:1px!important}.sp4 .pill{white-space:normal!important;font-size:11px!important;line-height:1.45!important;letter-spacing:1.2px!important}.sp4 h2.big{font-size:clamp(30px,9vw,40px)!important}.sp4 .rea,.sp4 .trust{display:grid!important;grid-template-columns:1fr 1fr!important;gap:6px!important}.sp4 .rea span,.sp4 .trust span{font-size:11px!important;letter-spacing:.7px!important;line-height:1.35!important;padding:9px!important;min-height:44px;display:flex;align-items:center;gap:4px}.sp4 .card{flex:1 1 100%!important}.sp4 .cw\u003ediv{flex:1 1 100%!important;padding:16px!important}.sp4 .dl a,.sp4 .dl a\u003espan,.sp4 .dl a span[style*=inline-block]{display:block!important}.sp4 .dl a span[style*=inline-block]{padding:15px 14px!important;font-size:15px!important;text-align:center}.sp4 table{font-size:14px!important}.sp4 td{padding:8px 12px!important;overflow-wrap:anywhere}.sp4 td:first-child{width:44%}.sp4 .pair a{flex:1 1 100%!important;min-height:52px;border-left:3px solid #E8560F!important}.sp4 .faq{columns:auto!important}.sp4 .sup a{display:inline-block;padding:10px 0;min-height:44px;line-height:24px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eBattery terminals · gold-plated · digital voltmeter\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e1×0 + 1×4 + 2×8 GA.\u003cbr\u003e\u003cem\u003eWith a voltmeter on (+).\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-BT 06 is a pair of gold-plated brass battery terminals: one positive terminal with an integrated 3-digit LED voltmeter and one negative terminal. Each offers four cable entries and turns the battery post into a clean, solid power distribution point for high-power car audio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e300\u003ci\u003eA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eMAX. CONTINUOUS CURRENT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e4\u003ci\u003eENTRIES\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePER TERMINAL\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e0.1\u003ci\u003eV\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eVOLTMETER STEP · 3.0–30.0 V\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e GOLD-PLATED BRASS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e LED VOLTMETER\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e CLEAR COVERS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy this terminal\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eBattery voltage at a glance\u003c\/b\u003e\u003cp\u003eThe 3-digit LED display on the positive terminal shows the voltage with one decimal: battery state with the engine off, charging with the engine running.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eGold does not oxidise\u003c\/b\u003e\u003cp\u003eThe contact stays low-resistance year after year, even in a humid engine bay, so current flows without heat or voltage drop at the joint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eFour entries per terminal\u003c\/b\u003e\u003cp\u003e1×0 GA for the main feed, 1×4 GA for a second amplifier or a distribution block, 2×8 GA for accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003e300 A continuous\u003c\/b\u003e\u003cp\u003eMaximum continuous current declared by the manufacturer, on a 12 V DC system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eClear, insulating cover\u003c\/b\u003e\u003cp\u003eTransparent polycarbonate: the live metal stays insulated but visible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eBuilt for the Big 3\u003c\/b\u003e\u003cp\u003eIdeal for single-amplifier upgrades, multi-amp systems, the Big 3 upgrade and competition builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\" style=\"padding-top: 18px;\"\u003e\n\u003cspan\u003eNegative off first, on last\u003c\/span\u003e\u003cspan\u003eFuse within 20 cm on every positive\u003c\/span\u003e\u003cspan\u003eRight gauge in every port\u003c\/span\u003e\u003cspan\u003eRe-tighten after the first week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003ePROFESSIONAL USER MANUAL · 13 PAGES\u003c\/div\u003e\n\u003cp\u003eSafety, installation step by step, wiring, troubleshooting and the full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-BT-06-Manual-EN-2026.pdf?v=1791979525\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Download the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eA pair in a black box, orange print.\u003c\/b\u003e\u003cp\u003eSP-BT 06 (+) positive terminal with display and red\/black leads · SP-BT 06 (−) negative terminal · 2 transparent protective covers (pre-fitted) · user manual.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eNot included:\u003c\/b\u003e power cables, fuses and tools.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eTERMINALS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet\u003c\/td\u003e\n\u003ctd\u003e1 × (+) with display · 1 × (−)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable entries per terminal\u003c\/td\u003e\n\u003ctd\u003e1×0 GA + 1×4 GA + 2×8 GA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConductor sections\u003c\/td\u003e\n\u003ctd\u003e53.5 · 21.2 · 8.4 mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery post\u003c\/td\u003e\n\u003ctd\u003eTop post, Ø 19 mm hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eELECTRICAL\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e12 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. continuous current\u003c\/td\u003e\n\u003ctd\u003e300 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e3-digit LED voltmeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay range \/ step\u003c\/td\u003e\n\u003ctd\u003e3.0 – 30.0 V · 0.1 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eMECHANICAL\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (each)\u003c\/td\u003e\n\u003ctd\u003e62 × 42 × 56 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEntry Ø 0 GA \/ 4 GA \/ 8 GA\u003c\/td\u003e\n\u003ctd\u003e11 \/ 7.5 \/ 4.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp ring outer Ø\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight, one terminal\u003c\/td\u003e\n\u003ctd\u003e≈ 0.16 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eGold-plated brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover\u003c\/td\u003e\n\u003ctd\u003eClear polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e−20 … +85 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eBlack retail box, 1 pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eMANUFACTURER'S DATA · NOMINAL VALUES AT 25 °C · THE VOLTMETER READING IS INDICATIVE: CONFIRM CRITICAL VALUES WITH A MULTIMETER\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-bt-01\"\u003e\u003csmall\u003eSAME PORTS, NO DISPLAY\u003c\/small\u003e\u003cstrong\u003eSP-BT 01 — 1×0 + 1×4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-29\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 29 — 4 × 0\/4 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/a\"\u003e\u003csmall\u003eSP AGM BATTERY · 100 Ah\u003c\/small\u003e\u003cstrong\u003eSP-100A — 1800 A CCA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDisconnect the battery before any work.\u003c\/b\u003e Remove the negative terminal first and re-connect it last.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMain fuse close to the battery.\u003c\/b\u003e An inline fuse or circuit breaker within 20 cm of the positive terminal on every power cable leaving it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe display terminal is the positive one.\u003c\/b\u003e It goes on the positive post only. Reversed polarity can destroy the audio system and the display and is not covered by warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRespect the cable gauge.\u003c\/b\u003e Each entry takes only its own gauge: 0 GA, 4 GA or 8 GA. A smaller cable in a larger entry gives a poor grip, heat and burnt terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12 V vehicle systems only.\u003c\/b\u003e For 12 V lead-acid, AGM or lithium car batteries with top posts. Not for 24 V trucks or mains power. Leave at least 60 mm above the terminal to close the hood.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow do I power the voltmeter?\u003c\/b\u003eWith its two leads: red to +12 V, black to ground. If the display stays dark, check the leads, the polarity and the fuse.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat should the display read?\u003c\/b\u003e13.8–14.7 V with the engine running means charging is OK; 12.6 V or more with the engine off means the battery is full; below 11.8 V the battery is discharged; above 15.0 V check the alternator and regulator.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow much current can it carry?\u003c\/b\u003eThe manufacturer declares 300 A maximum continuous current, on 12 V DC systems.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWill it fit my battery?\u003c\/b\u003eIt is made for standard top posts with a Ø 19 mm clamp hole. Leave at least 60 mm of free height above the terminal to close the hood.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eThe reading differs from my multimeter. Why?\u003c\/b\u003eUsually a poor ground on the black lead or a dirty contact: ground the black lead to bare metal and clean the contacts. The display is indicative; confirm critical values with a multimeter.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, cable gauges, number of batteries — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How do I power the voltmeter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"With its two leads: red to +12 V, black to ground. If the display stays dark, check the leads, the polarity and the fuse.\"}}, {\"@type\": \"Question\", \"name\": \"What should the display read?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"13.8–14.7 V with the engine running means charging is OK; 12.6 V or more with the engine off means the battery is full; below 11.8 V the battery is discharged; above 15.0 V check the alternator and regulator.\"}}, {\"@type\": \"Question\", \"name\": \"How much current can it carry?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The manufacturer declares 300 A maximum continuous current, on 12 V DC systems.\"}}, {\"@type\": \"Question\", \"name\": \"Will it fit my battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is made for standard top posts with a Ø 19 mm clamp hole. Leave at least 60 mm of free height above the terminal to close the hood.\"}}, {\"@type\": \"Question\", \"name\": \"The reading differs from my multimeter. Why?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Usually a poor ground on the black lead or a dirty contact: ground the black lead to bare metal and clean the contacts. The display is indicative; confirm critical values with a multimeter.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":50806306931031,"sku":"79505","price":47.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_ef86d038-5797-4265-bfb5-371547674099.webp?v=1773058991"},{"product_id":"sp-bt-16-blister","title":"SP-BT 16 (Blister) . BATTERY TERMINAL","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid 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2px;font-size:9.5px;font-weight:800;letter-spacing:1.7px;line-height:1.8;color:#7a7a7a;text-transform:uppercase;text-align:center}@media screen and (min-width:1000px){.product{row-gap:0!important}.product-info{display:contents!important}.product-gallery{grid-column:1!important;grid-row:1\/span 99!important}.product-info__block-item{grid-column:2!important}.product-info__block-item[data-block-type=description]{grid-column:1\/-1!important;grid-row:100!important;margin-top:44px!important}.sp4{font-size:17px}.sp4 .in,.sp4 .top,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .rea,.sp4 .sec,.sp4 .band,.sp4 .paym,.sp4 .fine,.sp4 .swipe,.sp4 .pnl,.sp4 .trust{padding-left:40px;padding-right:40px}.sp4 .frame,.sp4 .quote,.sp4 .dl,.sp4 .cw,.sp4 .tw,.sp4 .warn,.sp4 .faq,.sp4 .sup{margin-left:40px;margin-right:40px}.sp4 h2.big{font-size:66px}.sp4 .sub{max-width:66ch;font-size:17px}.sp4 .band b{font-size:46px}.sp4 .card{flex:1 1 300px}.sp4 .cards{gap:14px}.sp4 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.pair small,.sp4 .band span,.sp4 th,.sp4 .dl .k{font-size:11px!important;letter-spacing:1px!important}.sp4 .pill{white-space:normal!important;font-size:11px!important;line-height:1.45!important;letter-spacing:1.2px!important}.sp4 h2.big{font-size:clamp(30px,9vw,40px)!important}.sp4 .rea,.sp4 .trust{display:grid!important;grid-template-columns:1fr 1fr!important;gap:6px!important}.sp4 .rea span,.sp4 .trust span{font-size:11px!important;letter-spacing:.7px!important;line-height:1.35!important;padding:9px!important;min-height:44px;display:flex;align-items:center;gap:4px}.sp4 .card{flex:1 1 100%!important}.sp4 .cw\u003ediv{flex:1 1 100%!important;padding:16px!important}.sp4 .dl a,.sp4 .dl a\u003espan,.sp4 .dl a span[style*=inline-block]{display:block!important}.sp4 .dl a span[style*=inline-block]{padding:15px 14px!important;font-size:15px!important;text-align:center}.sp4 table{font-size:14px!important}.sp4 td{padding:8px 12px!important;overflow-wrap:anywhere}.sp4 td:first-child{width:44%}.sp4 .pair a{flex:1 1 100%!important;min-height:52px;border-left:3px solid #E8560F!important}.sp4 .faq{columns:auto!important}.sp4 .sup a{display:inline-block;padding:10px 0;min-height:44px;line-height:24px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eBattery terminals · clamp ring + 4 cable entries · blister\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e2×0 + 2×8 GA.\u003cbr\u003e\u003cem\u003eFour solid connections.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-BT 16 is a pair of gold-tone battery terminals in a blister pack. Each one clamps onto the battery post with a ring and a side screw, and gives you four clean cable entries: two 0 GA for main power and two 8 GA for auxiliary feeds, each locked by its own hex set screw.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e2×0\u003ci\u003eGA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eMAIN POWER ENTRIES\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e2×8\u003ci\u003eGA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eAUXILIARY ENTRIES\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e4\u003ci\u003eSCREWS\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eHEX SET SCREWS PER TERMINAL\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e GOLD-TONE FINISH\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e 2×0 + 2×8 GA\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e BLISTER PACK\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy this terminal\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eTwo 0 GA entries\u003c\/b\u003e\u003cp\u003eMain power for an amplifier or a distribution block, straight from the battery post.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eTwo 8 GA entries\u003c\/b\u003e\u003cp\u003eAuxiliary feeds for processors, fans and accessories, without splicing into the main cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eOne screw per cable\u003c\/b\u003e\u003cp\u003eEach entry is locked by its own hex set screw: larger screws for 0 GA, smaller for 8 GA.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eRing clamp with side screw\u003c\/b\u003e\u003cp\u003eThe ring slides over the post and a hex clamp screw on the side tightens it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003ePolarity marked on the clamp\u003c\/b\u003e\u003cp\u003e(+) or (−) engraved on the clamp neck of each terminal of the pair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eReady in a blister\u003c\/b\u003e\u003cp\u003eSold as a pair in a sealed blister pack, with CE and RoHS symbols printed on the pack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\" style=\"padding-top: 18px;\"\u003e\n\u003cspan\u003eNegative off first, on last\u003c\/span\u003e\u003cspan\u003eFuse within 20 cm on every positive\u003c\/span\u003e\u003cspan\u003eRight gauge in every port\u003c\/span\u003e\u003cspan\u003eRe-tighten after the first week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003ePROFESSIONAL USER MANUAL · 9 PAGES\u003c\/div\u003e\n\u003cp\u003eSafety, installation step by step, wiring, troubleshooting and the full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-BT-16-Manual-EN-2026.pdf?v=1791979525\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Download the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eOne blister pack, ready to install.\u003c\/b\u003e\u003cp\u003eSP-BT 16 battery terminals, one pair: (+) and (−) marked on the clamp · sealed blister pack with CE \/ RoHS symbols and barcode · user manual (digital, latest version on spaudio.it).\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eNot included:\u003c\/b\u003e battery cables, fuse holders and fuses, ring terminals, hex (Allen) keys and tools.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003ePRODUCT\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSP-BT 16 (BLISTER)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBattery terminals, pair (+) \/ (−)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable entries per terminal\u003c\/td\u003e\n\u003ctd\u003e2 × 0 GA + 2 × 8 GA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable sections (standard)\u003c\/td\u003e\n\u003ctd\u003e0 GA ≈ 53.5 mm² · 8 GA ≈ 8.4 mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eCONNECTION\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery clamp\u003c\/td\u003e\n\u003ctd\u003eRing with side clamp screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable clamping\u003c\/td\u003e\n\u003ctd\u003eHex set screw, one per entry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGold-tone plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarity marking\u003c\/td\u003e\n\u003ctd\u003e(+) \/ (−) on the clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eBODY \u0026amp; PACK\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (approx.)\u003c\/td\u003e\n\u003ctd\u003e46 × 54 × 16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamp ring outer Ø \/ bore Ø\u003c\/td\u003e\n\u003ctd\u003e24 \/ 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0 GA \/ 8 GA entry Ø\u003c\/td\u003e\n\u003ctd\u003e≈ 10 \/ ≈ 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003eBlister pack · 1 pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEAN\u003c\/td\u003e\n\u003ctd\u003e0 791718 070344\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarks on pack\u003c\/td\u003e\n\u003ctd\u003eCE · RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent rating\u003c\/td\u003e\n\u003ctd\u003eNot declared by the manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eMANUFACTURER'S DATA · DIMENSIONS ARE APPROXIMATE (±2 MM) · CHOOSE CABLE GAUGE AND FUSE FOR THE ACTUAL LOAD\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-bt-30-blister\"\u003e\u003csmall\u003eBATTERY TERMINAL · BLISTER\u003c\/small\u003e\u003cstrong\u003eSP-BT 30 — 1 × 8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-18\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 18 — 2×0\/4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-55a\"\u003e\u003csmall\u003eSP AGM BATTERY · 55 Ah\u003c\/small\u003e\u003cstrong\u003eSP-55A — 850 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDisconnect the battery first.\u003c\/b\u003e Remove the negative terminal first and re-connect it last. A tool bridging (+) and (−) can melt in seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuse within 20 cm of the battery.\u003c\/b\u003e Every power cable leaving a terminal needs a fuse or circuit breaker rated for that cable, at most 20 cm from the battery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCorrect cable gauge.\u003c\/b\u003e 0 GA cable in the 0 GA entries and 8 GA in the 8 GA entries. Never use thinner cable than the entry is made for.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClean and tight.\u003c\/b\u003e Clean post and clamp bore to bare metal. Tighten firmly but do not over-tighten, and re-check after the first drive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12 V negative-ground vehicles only.\u003c\/b\u003e Do not use on 24 V trucks or other systems. Do not modify or drill the terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich cables does the SP-BT 16 take?\u003c\/b\u003eEach terminal has two 0 GA entries (≈ 53.5 mm²) for main power and two 8 GA entries (≈ 8.4 mm²) for auxiliary feeds.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow does it clamp to the battery?\u003c\/b\u003eA ring slides fully down on the post and a hex clamp screw on the side tightens it. The bore is about 17 mm.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat current does it handle?\u003c\/b\u003eThe current rating is not declared: choose cable gauge and fuse for the actual load. Ask us and we will check it with you.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat should I measure after installing it?\u003c\/b\u003eAbout 12.4–12.8 V DC with the engine off, about 13.5–14.4 V DC with the engine running, and less than 0.2 V of drop across one joint under load.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat do I do with unused entries?\u003c\/b\u003eKeep them clean and dry and leave the set screw snug, never forced.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, cable gauges, number of batteries — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which cables does the SP-BT 16 take?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each terminal has two 0 GA entries (≈ 53.5 mm²) for main power and two 8 GA entries (≈ 8.4 mm²) for auxiliary feeds.\"}}, {\"@type\": \"Question\", \"name\": \"How does it clamp to the battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A ring slides fully down on the post and a hex clamp screw on the side tightens it. The bore is about 17 mm.\"}}, {\"@type\": \"Question\", \"name\": \"What current does it handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The current rating is not declared: choose cable gauge and fuse for the actual load. Ask us and we will check it with you.\"}}, {\"@type\": \"Question\", \"name\": \"What should I measure after installing it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"About 12.4–12.8 V DC with the engine off, about 13.5–14.4 V DC with the engine running, and less than 0.2 V of drop across one joint under load.\"}}, {\"@type\": \"Question\", \"name\": \"What do I do with unused entries?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Keep them clean and dry and leave the set screw snug, never forced.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":50806315778391,"sku":"79502","price":16.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_89146011-58e4-462b-9ea0-bda63ff10109.webp?v=1773059171"},{"product_id":"sp-bt-30-blister","title":"SP-BT 30 (Blister) . BATTERY TERMINAL","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid 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.pair small,.sp4 .band span,.sp4 th,.sp4 .dl .k{font-size:11px!important;letter-spacing:1px!important}.sp4 .pill{white-space:normal!important;font-size:11px!important;line-height:1.45!important;letter-spacing:1.2px!important}.sp4 h2.big{font-size:clamp(30px,9vw,40px)!important}.sp4 .rea,.sp4 .trust{display:grid!important;grid-template-columns:1fr 1fr!important;gap:6px!important}.sp4 .rea span,.sp4 .trust span{font-size:11px!important;letter-spacing:.7px!important;line-height:1.35!important;padding:9px!important;min-height:44px;display:flex;align-items:center;gap:4px}.sp4 .card{flex:1 1 100%!important}.sp4 .cw\u003ediv{flex:1 1 100%!important;padding:16px!important}.sp4 .dl a,.sp4 .dl a\u003espan,.sp4 .dl a span[style*=inline-block]{display:block!important}.sp4 .dl a span[style*=inline-block]{padding:15px 14px!important;font-size:15px!important;text-align:center}.sp4 table{font-size:14px!important}.sp4 td{padding:8px 12px!important;overflow-wrap:anywhere}.sp4 td:first-child{width:44%}.sp4 .pair a{flex:1 1 100%!important;min-height:52px;border-left:3px solid #E8560F!important}.sp4 .faq{columns:auto!important}.sp4 .sup a{display:inline-block;padding:10px 0;min-height:44px;line-height:24px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eBattery terminals · 1 × 8 GA · blister\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e1 × 8 GA.\u003cbr\u003e\u003cem\u003eTwo clamps, one job.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-BT 30 is a pair of copper-finish battery terminals, positive and negative, for 8 GA cable, supplied on a ready-to-hang blister card. A ring closes around the post with a stainless clamp bolt and nut, and a two-bolt wire clamp plate grips the stripped cable directly: no soldering, no crimping tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e1×8\u003ci\u003eGA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eCABLE SIZE · ≈ 8.4 MM²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e2\u003ci\u003eBOLTS\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eON THE WIRE CLAMP\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e17.5\u003ci\u003eMM\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePOST HOLE Ø\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e COPPER FINISH\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e 1 × 8 GA\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e BLISTER · CE\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy this terminal\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eWhy 8 GA matters\u003c\/b\u003e\u003cp\u003e8 GA (≈ 8.4 mm²) is the classic gauge for a single amplifier or accessory line. The wire clamp is sized for it: no adaptors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eWhy two clamp bolts matter\u003c\/b\u003e\u003cp\u003eTwo bolts spread the clamping force along the conductor, so the cable does not pull out and the contact stays tight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eWhy a pair matters\u003c\/b\u003e\u003cp\u003eBoth terminals in one blister: you replace positive and negative together, so both connections age at the same rate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eStainless post bolt\u003c\/b\u003e\u003cp\u003eA stainless steel clamp bolt with nut closes the ring on the post until the terminal cannot rotate by hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eCompact clamp body\u003c\/b\u003e\u003cp\u003e60 × 30 × 26 mm: fits tight battery bays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eNot only car audio\u003c\/b\u003e\u003cp\u003eReplacement of worn terminals, auxiliary and second-battery installs, marine, camper and workshop 12 V points with top-post batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\" style=\"padding-top: 18px;\"\u003e\n\u003cspan\u003eNegative off first, on last\u003c\/span\u003e\u003cspan\u003eFuse within 20 cm on every positive\u003c\/span\u003e\u003cspan\u003eRight gauge in every port\u003c\/span\u003e\u003cspan\u003eRe-tighten after the first week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003ePROFESSIONAL USER MANUAL · 22 PAGES\u003c\/div\u003e\n\u003cp\u003eSafety, installation step by step, wiring, troubleshooting and the full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-BT-30-Manual-EN-2026.pdf?v=1791979525\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Download the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eTwo terminals on a blister card.\u003c\/b\u003e\u003cp\u003ePositive (+) battery terminal, marked + · negative (−) battery terminal · orange blister card printed with the SP mark, the model SP-BT 30, the size 1×8GA and the CE marking.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eNot included:\u003c\/b\u003e battery cable, inline fuse and holder, ring terminals, heat-shrink.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eTERMINALS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSP-BT 30 (BLISTER)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eTop-post battery terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply\u003c\/td\u003e\n\u003ctd\u003e1 pair: + and −\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarity marking\u003c\/td\u003e\n\u003ctd\u003e+ on the positive terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eCABLE\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable size\u003c\/td\u003e\n\u003ctd\u003e1 × 8 GA (≈ 8.4 mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire connection\u003c\/td\u003e\n\u003ctd\u003eClamp plate, 2 bolts, no soldering\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse\u003c\/td\u003e\n\u003ctd\u003eInline, ≤ 20 cm from battery, rated for cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eMATERIALS \u0026amp; FINISH\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody finish\u003c\/td\u003e\n\u003ctd\u003eCopper-coloured plating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost clamp\u003c\/td\u003e\n\u003ctd\u003eStainless steel bolt with nut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire clamp bolts\u003c\/td\u003e\n\u003ctd\u003ePlated steel, hex head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eMECHANICAL\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL × W × H\u003c\/td\u003e\n\u003ctd\u003e60 × 30 × 26 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost hole\u003c\/td\u003e\n\u003ctd\u003eØ 17.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing outer diameter\u003c\/td\u003e\n\u003ctd\u003eØ 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire clamp plate width\u003c\/td\u003e\n\u003ctd\u003e24 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eAPPLICATION \u0026amp; PACK\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem voltage\u003c\/td\u003e\n\u003ctd\u003e12 V negative ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eReady-to-hang blister card · 2 terminals (+ and −)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification mark\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent rating\u003c\/td\u003e\n\u003ctd\u003eNot declared by the manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eMANUFACTURER'S DATA · NOMINAL VALUES, TOLERANCE ±1 MM · SUBJECT TO CHANGE WITHOUT NOTICE\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-bt-16-blister\"\u003e\u003csmall\u003eBATTERY TERMINAL · BLISTER\u003c\/small\u003e\u003cstrong\u003eSP-BT 16 — 2×0 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-01\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 01 — 1×0 + 1×4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-55a\"\u003e\u003csmall\u003eSP AGM BATTERY · 55 Ah\u003c\/small\u003e\u003cstrong\u003eSP-55A — 850 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDisconnect the negative first.\u003c\/b\u003e Remove the negative (−) terminal first and reconnect it last. Never let a tool touch the positive post and the bodywork at the same time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuse the circuit.\u003c\/b\u003e Any cable taken from the battery positive needs an inline fuse within 20 cm of the terminal, never rated higher than the cable can carry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCorrect cable only.\u003c\/b\u003e The wire clamp is made for 8 GA (≈ 8.4 mm²). Do not force thicker cable, do not cut strands to make it fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCheck the post size.\u003c\/b\u003e The ring must close around the post with the clamp bolt still able to tighten: a terminal that closes on itself without gripping is too big.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12 V systems only.\u003c\/b\u003e For 12 V negative-ground passenger-vehicle batteries. Not for 24 V trucks or as a mains connector.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich cable does the SP-BT 30 take?\u003c\/b\u003eOne 8 GA cable (≈ 8.4 mm²) per terminal, gripped by a two-bolt clamp plate. Strip about the length of the plate and tighten both bolts evenly.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eDo I need crimping or soldering?\u003c\/b\u003eNo. The wire clamp plate grips the stripped cable directly: no soldering and no crimping tools.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat should I measure after installing it?\u003c\/b\u003eAbout 12.4–12.8 V DC with the engine off and 13.5–14.4 V DC running; joint resistance below 0.1 Ω and less than 0.2 V of drop across a joint at full load.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eThe terminal turns on the post. Why?\u003c\/b\u003eThe clamp bolt is not tight, or the post is larger than the ring. Tighten the bolt; if the ring closes without gripping, the terminal is too big for that post.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat current does it handle?\u003c\/b\u003eThe manufacturer does not declare a current rating. Use 8 GA cable and a fuse rated for the cable: ask us and we will check your system with you.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, cable gauges, number of batteries — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which cable does the SP-BT 30 take?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"One 8 GA cable (≈ 8.4 mm²) per terminal, gripped by a two-bolt clamp plate. Strip about the length of the plate and tighten both bolts evenly.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need crimping or soldering?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The wire clamp plate grips the stripped cable directly: no soldering and no crimping tools.\"}}, {\"@type\": \"Question\", \"name\": \"What should I measure after installing it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"About 12.4–12.8 V DC with the engine off and 13.5–14.4 V DC running; joint resistance below 0.1 Ω and less than 0.2 V of drop across a joint at full load.\"}}, {\"@type\": \"Question\", \"name\": \"The terminal turns on the post. Why?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The clamp bolt is not tight, or the post is larger than the ring. Tighten the bolt; if the ring closes without gripping, the terminal is too big for that post.\"}}, {\"@type\": \"Question\", \"name\": \"What current does it handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The manufacturer does not declare a current rating. Use 8 GA cable and a fuse rated for the cable: ask us and we will check your system with you.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":50806328885591,"sku":"79501","price":13.01,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_774295de-d5a8-4e59-9ed5-c8d2de54cade.webp?v=1773059205"},{"product_id":"sp-bt-18","title":"SP-BT 18 . BATTERY TERMINAL","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid 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.pair small,.sp4 .band span,.sp4 th,.sp4 .dl .k{font-size:11px!important;letter-spacing:1px!important}.sp4 .pill{white-space:normal!important;font-size:11px!important;line-height:1.45!important;letter-spacing:1.2px!important}.sp4 h2.big{font-size:clamp(30px,9vw,40px)!important}.sp4 .rea,.sp4 .trust{display:grid!important;grid-template-columns:1fr 1fr!important;gap:6px!important}.sp4 .rea span,.sp4 .trust span{font-size:11px!important;letter-spacing:.7px!important;line-height:1.35!important;padding:9px!important;min-height:44px;display:flex;align-items:center;gap:4px}.sp4 .card{flex:1 1 100%!important}.sp4 .cw\u003ediv{flex:1 1 100%!important;padding:16px!important}.sp4 .dl a,.sp4 .dl a\u003espan,.sp4 .dl a span[style*=inline-block]{display:block!important}.sp4 .dl a span[style*=inline-block]{padding:15px 14px!important;font-size:15px!important;text-align:center}.sp4 table{font-size:14px!important}.sp4 td{padding:8px 12px!important;overflow-wrap:anywhere}.sp4 td:first-child{width:44%}.sp4 .pair a{flex:1 1 100%!important;min-height:52px;border-left:3px solid #E8560F!important}.sp4 .faq{columns:auto!important}.sp4 .sup a{display:inline-block;padding:10px 0;min-height:44px;line-height:24px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eBattery terminal set · 2×0\/4 GA + 2×8 GA\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e2×0\/4 + 2×8 GA.\u003cbr\u003e\u003cem\u003eFour outputs per post.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-BT 18 is a pair of high-current battery terminals that turns each battery post into a compact power hub: on every terminal two large outputs for 0 to 4 AWG cable and two 8 AWG outputs, all locked with hex-socket set screws, with a transparent cover for each terminal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e2×0\/4\u003ci\u003eGA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eLARGE OUTPUTS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e2×8\u003ci\u003eGA\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eSMALL OUTPUTS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e4\u003ci\u003eOUTPUTS\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePER TERMINAL\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e SILVER \/ GOLD TONE\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e 2×0\/4 + 2×8 GA\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e CLEAR COVERS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy this terminal\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eWhy 0\/4 GA matters\u003c\/b\u003e\u003cp\u003eLarge-gauge cable keeps the voltage drop low when amplifiers pull hundreds of amps for a few seconds of bass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eWhy 8 GA matters\u003c\/b\u003e\u003cp\u003eProcessors, DSP and small amplifiers get their own fused feed without splicing into the main cable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eWhy four outputs matter\u003c\/b\u003e\u003cp\u003eNo stacked ring terminals on the post: every cable has its own screw, fewer joints, a cleaner engine bay.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eClamp bolt and knurled knob\u003c\/b\u003e\u003cp\u003eFits round top-post batteries: the clamp bolt closes the clamp on the post, the knurled knob tightens by hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eInsulated\u003c\/b\u003e\u003cp\u003eA transparent cover snaps over each terminal once the cables are tightened: no bare metal visible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eCompact\u003c\/b\u003e\u003cp\u003eAbout 62 mm long: fits under the hood beside stock cables.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\" style=\"padding-top: 18px;\"\u003e\n\u003cspan\u003eNegative off first, on last\u003c\/span\u003e\u003cspan\u003eFuse within 20 cm on every positive\u003c\/span\u003e\u003cspan\u003eRight gauge in every port\u003c\/span\u003e\u003cspan\u003eRe-tighten after the first week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003ePROFESSIONAL USER MANUAL · 19 PAGES\u003c\/div\u003e\n\u003cp\u003eSafety, installation step by step, wiring, troubleshooting and the full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-BT-18-Manual-EN-2026.pdf?v=1791979526\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Download the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eTwo terminals, two clear covers, one retail box.\u003c\/b\u003e\u003cp\u003eSP-BT 18 battery terminals (positive + negative) · 2 clear insulating covers · user manual, in a black-and-orange SPAUDIO retail box.\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eNot included:\u003c\/b\u003e power and ground cables, ring terminals, fuse holders \/ breakers, tools.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eOUTPUTS PER TERMINAL\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLarge outputs\u003c\/td\u003e\n\u003ctd\u003e2 × 0\/4 GA (0 → 4 AWG · ≈ 53.5 → 21.2 mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmall outputs\u003c\/td\u003e\n\u003ctd\u003e2 × 8 GA (8 AWG · ≈ 8.4 mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocking\u003c\/td\u003e\n\u003ctd\u003eHex-socket set screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eBATTERY CLAMP\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery type\u003c\/td\u003e\n\u003ctd\u003eRound top post, 12 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping\u003c\/td\u003e\n\u003ctd\u003eClamp bolt + knurled knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet\u003c\/td\u003e\n\u003ctd\u003ePositive + negative pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eMATERIALS \u0026amp; FINISH\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003eSilver-tone plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware\u003c\/td\u003e\n\u003ctd\u003eGold-tone plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover\u003c\/td\u003e\n\u003ctd\u003eTransparent, insulating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eMECHANICAL (APPROX.)\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL × W × H\u003c\/td\u003e\n\u003ctd\u003e≈ 62 × 34 × 30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePost clamp bore\u003c\/td\u003e\n\u003ctd\u003e≈ Ø 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLarge \/ small output bore\u003c\/td\u003e\n\u003ctd\u003e≈ Ø 10 \/ ≈ Ø 4.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003ePACKAGING\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBox\u003c\/td\u003e\n\u003ctd\u003eSPAUDIO retail box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContents\u003c\/td\u003e\n\u003ctd\u003e2 terminals · 2 covers · manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent rating\u003c\/td\u003e\n\u003ctd\u003eNot declared by the manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eOUTPUTS FROM THE MANUFACTURER'S PRODUCT LABEL · DIMENSIONS AND FINISH ARE APPROXIMATE: MEASURE YOUR POST BEFORE BUYING CABLE\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-bt-29\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 29 — 4 × 0\/4 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-16-blister\"\u003e\u003csmall\u003eBATTERY TERMINAL · BLISTER\u003c\/small\u003e\u003cstrong\u003eSP-BT 16 — 2×0 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/a\"\u003e\u003csmall\u003eSP AGM BATTERY · 100 Ah\u003c\/small\u003e\u003cstrong\u003eSP-100A — 1800 A CCA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDisconnect the battery first.\u003c\/b\u003e Remove the negative terminal first and re-connect it last. Never let a tool bridge the positive post and the vehicle body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuse close to the battery.\u003c\/b\u003e Every power cable leaving the positive terminal needs its own fuse or breaker within 20 cm, sized for the cable and the load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUse the right cable.\u003c\/b\u003e 0 to 4 AWG in the two large outputs, up to 8 AWG in the two small ones. Never force a larger cable, never leave loose strands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNever feed the amplifier from the fuse box.\u003c\/b\u003e Not from the fuse box, cigarette lighter or head-unit supply: only the battery can deliver the current a car-audio system needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRe-tighten after the first week.\u003c\/b\u003e Thermal cycling and vibration can loosen screws. Tighten securely, not brutally: over-tightening strips threads or crushes strands.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich cables does the SP-BT 18 take?\u003c\/b\u003eOn every terminal: two large outputs for 0 to 4 AWG cable and two small outputs for 8 AWG cable.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWill it fit my battery?\u003c\/b\u003eIt is designed for 12 V round top-post batteries, with a clamp bore of about 17 mm. Measure your post and leave at least 30 mm above the terminals for covers and cable bends.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat do I connect to the 8 GA outputs?\u003c\/b\u003eAccessories, DSP, processors, small amplifiers or remote lines, each fused near the terminal; on the negative terminal, an auxiliary ground.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat voltage drop is acceptable?\u003c\/b\u003eTerminal to post: less than 0.05 V under load. Ground to battery (−): less than 0.1 V under load.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat current does it handle?\u003c\/b\u003eThe manufacturer does not declare a current rating. Size cable and fuse for your system: ask us and we will check it with you.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, cable gauges, number of batteries — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Which cables does the SP-BT 18 take?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"On every terminal: two large outputs for 0 to 4 AWG cable and two small outputs for 8 AWG cable.\"}}, {\"@type\": \"Question\", \"name\": \"Will it fit my battery?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is designed for 12 V round top-post batteries, with a clamp bore of about 17 mm. Measure your post and leave at least 30 mm above the terminals for covers and cable bends.\"}}, {\"@type\": \"Question\", \"name\": \"What do I connect to the 8 GA outputs?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Accessories, DSP, processors, small amplifiers or remote lines, each fused near the terminal; on the negative terminal, an auxiliary ground.\"}}, {\"@type\": \"Question\", \"name\": \"What voltage drop is acceptable?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Terminal to post: less than 0.05 V under load. Ground to battery (−): less than 0.1 V under load.\"}}, {\"@type\": \"Question\", \"name\": \"What current does it handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The manufacturer does not declare a current rating. Size cable and fuse for your system: ask us and we will check it with you.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":50806344188247,"sku":"79503","price":24.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_60dc47f3-180f-4313-a69b-427ce132805d.webp?v=1773059058"},{"product_id":"sp-bt-29","title":"SP-BT 29 . BATTERY TERMINAL","description":"\u003clink rel=\"stylesheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-product-style.css\"\u003e\n\u003cdiv class=\"sp4\"\u003e\n\u003cstyle\u003e.sp4 .pnl{display:grid;gap:12px;padding:0 22px}.sp4{background:#0B0B0B;color:#E8E8E8;border-radius:14px;overflow:hidden;font-size:16px;line-height:1.6}.sp4 img{display:block;width:100%;height:auto}.sp4 .band{background:#E8560F}.sp4 .pill{display:inline-block;background:#E8560F;color:#fff;font-size:9.5px;font-weight:800;letter-spacing:1.5px;padding:6px 10px;text-transform:uppercase;white-space:nowrap}.sp4 h2.big,.sp4 .sec h3,.sp4 .card b,.sp4 .faq b,.sp4 .pair strong{color:#fff}.sp4 .in,.sp4 .tags,.sp4 .bar,.sp4 .cards,.sp4 .pair,.sp4 .foot,.sp4 .top,.sp4 .vids,.sp4 .rea{padding-left:22px;padding-right:22px}.sp4 .vids figure{margin:0 auto 16px;max-width:430px}.sp4 .vids video{display:block;width:100%;height:auto;background:#0B0B0B;border:1px solid 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.pair small,.sp4 .band span,.sp4 th,.sp4 .dl .k{font-size:11px!important;letter-spacing:1px!important}.sp4 .pill{white-space:normal!important;font-size:11px!important;line-height:1.45!important;letter-spacing:1.2px!important}.sp4 h2.big{font-size:clamp(30px,9vw,40px)!important}.sp4 .rea,.sp4 .trust{display:grid!important;grid-template-columns:1fr 1fr!important;gap:6px!important}.sp4 .rea span,.sp4 .trust span{font-size:11px!important;letter-spacing:.7px!important;line-height:1.35!important;padding:9px!important;min-height:44px;display:flex;align-items:center;gap:4px}.sp4 .card{flex:1 1 100%!important}.sp4 .cw\u003ediv{flex:1 1 100%!important;padding:16px!important}.sp4 .dl a,.sp4 .dl a\u003espan,.sp4 .dl a span[style*=inline-block]{display:block!important}.sp4 .dl a span[style*=inline-block]{padding:15px 14px!important;font-size:15px!important;text-align:center}.sp4 table{font-size:14px!important}.sp4 td{padding:8px 12px!important;overflow-wrap:anywhere}.sp4 td:first-child{width:44%}.sp4 .pair a{flex:1 1 100%!important;min-height:52px;border-left:3px solid #E8560F!important}.sp4 .faq{columns:auto!important}.sp4 .sup a{display:inline-block;padding:10px 0;min-height:44px;line-height:24px}}\u003c\/style\u003e\n\u003cdiv class=\"top\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/sp-audio-logo-mark.png?v=1788926315\u0026amp;width=380\" alt=\"SP Audio - Super Power Audio\" width=\"186\" height=\"105\" decoding=\"async\"\u003e\u003cspan class=\"rg\"\u003e\u003cb\u003eSUPER POWER AUDIO\u003c\/b\u003e\u003cbr\u003eDESIGNED IN ITALY\u003cbr\u003eMMXXVI\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"in\"\u003e\n\u003cspan class=\"pill\"\u003eBattery terminal set · 4 × 0\/4 GA · heavy-duty\u003c\/span\u003e\u003ch2 class=\"big d\"\u003e4 × 0\/4 GA.\u003cbr\u003e\u003cem\u003eHeavy-duty, machined.\u003c\/em\u003e\n\u003c\/h2\u003e\n\u003cp class=\"sub\"\u003eThe SP-BT 29 is a pair of heavy-duty battery terminals, one positive and one negative, built for high-current car-audio installations. Each terminal clamps onto the battery post and offers two cable inputs for 0 to 4 AWG cable, so you can feed several amplifiers or distribution blocks straight from the battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tri\"\u003e\n\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\u003ci\u003e\u003c\/i\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"band\"\u003e\n\u003cdiv\u003e\n\u003cb\u003e4\u003ci\u003eINPUTS\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003e2 PER TERMINAL\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e0–4\u003ci\u003eAWG\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003eCABLE RANGE · 53.5–21.2 MM²\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e2\u003ci\u003eSCREWS\u003c\/i\u003e\u003c\/b\u003e\u003cspan\u003ePER INPUT · 4 PER TERMINAL\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"trust\"\u003e\n\u003cspan\u003e\u003cb\u003e🔒\u003c\/b\u003e Secure checkout · SSL \u0026amp; PCI DSS\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e↩\u003c\/b\u003e 14 days to change your mind (EU)\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e Invoice from an Italian company\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tags\"\u003e\n\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e ITALIAN DESIGN\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e MACHINED BODY\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e 4 × 0\/4 GA\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e LASER-MARKED + \/ −\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e✓\u003c\/b\u003e FREE SUPPORT\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e01\u003c\/u\u003e\u003ch3\u003eWhy this terminal\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eTwo inputs per terminal\u003c\/b\u003e\u003cp\u003eEach input accepts cable from 0 AWG (53.5 mm²) to 4 AWG (21.2 mm²): four inputs on the pair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eTwo screws on every input\u003c\/b\u003e\u003cp\u003eTwo hex-socket set screws clamp the strands of each cable: four screws per terminal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eSlotted post clamp\u003c\/b\u003e\u003cp\u003eA slotted clamp with one hex-socket clamp bolt locks the terminal on the post: it must not rotate or lift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eMachined body\u003c\/b\u003e\u003cp\u003eBright silver finish that keeps the installation tidy and easy to check at a glance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eLaser-marked polarity\u003c\/b\u003e\u003cp\u003e+ and − marked on the top face; the two terminals are mirror images of each other.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cb\u003eSeveral amplifiers, one point\u003c\/b\u003e\u003cp\u003eFeed amplifiers or distribution blocks straight from the battery, each line with its own fuse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"rea\" style=\"padding-top: 18px;\"\u003e\n\u003cspan\u003eNegative off first, on last\u003c\/span\u003e\u003cspan\u003eFuse within 20 cm on every positive\u003c\/span\u003e\u003cspan\u003eRight gauge in every port\u003c\/span\u003e\u003cspan\u003eRe-tighten after the first week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"dl\"\u003e\n\u003cdiv class=\"k\"\u003ePROFESSIONAL USER MANUAL · 14 PAGES\u003c\/div\u003e\n\u003cp\u003eSafety, installation step by step, wiring, troubleshooting and the full specifications.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/SPAUDIO-SP-BT-29-Manual-EN-2026.pdf?v=1791979525\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(232, 86, 15); padding: 18px 36px; border-radius: 6px; letter-spacing: 1px; text-transform: uppercase; box-shadow: rgba(232, 86, 15, 0.35) 0px 8px 24px;\"\u003e\u003cb\u003e⇩ Download the manual (PDF)\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cp class=\"n\"\u003ePDF · English · 2026 edition\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e02\u003c\/u\u003e\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cw\"\u003e\u003cdiv\u003e\n\u003cb\u003eA positive and a negative terminal.\u003c\/b\u003e\u003cp\u003eSP-BT 29 positive (+) terminal · SP-BT 29 negative (−) terminal · user manual, in a printed retail box \"SP-BT 29 · Battery Terminal · 4×0\/4GA\".\u003c\/p\u003e\n\u003cp class=\"sm\"\u003e\u003cb\u003eNot included:\u003c\/b\u003e battery cables, fuse holders, fuses, ring terminals and insulation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e03\u003c\/u\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tw\"\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eTERMINALS\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSP-BT 29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBattery terminal set, positive + negative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable inputs\u003c\/td\u003e\n\u003ctd\u003e4 in total (2 per terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable range per input\u003c\/td\u003e\n\u003ctd\u003e0 AWG (53.5 mm²) to 4 AWG (21.2 mm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable locking\u003c\/td\u003e\n\u003ctd\u003eHex-socket set screws, 2 per input (4 per terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery post clamp\u003c\/td\u003e\n\u003ctd\u003eSlotted clamp with one hex-socket clamp bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolarity marking\u003c\/td\u003e\n\u003ctd\u003e+ \/ − on the top face\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction \/ finish\u003c\/td\u003e\n\u003ctd\u003eMachined body, bright silver finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003eDIMENSIONS (APPROX.)\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL × W × H\u003c\/td\u003e\n\u003ctd\u003e85 × 44 × 20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery post hole\u003c\/td\u003e\n\u003ctd\u003eØ 17 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable inputs (per terminal)\u003c\/td\u003e\n\u003ctd\u003e2 × Ø 14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003cth colspan=\"2\"\u003ePROTECTION \u0026amp; PACK\u003c\/th\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired protection\u003c\/td\u003e\n\u003ctd\u003eInline fuse within 20 cm of the battery on every positive cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupplied\u003c\/td\u003e\n\u003ctd\u003e1 positive + 1 negative terminal, user manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackaging\u003c\/td\u003e\n\u003ctd\u003ePrinted retail box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent rating\u003c\/td\u003e\n\u003ctd\u003eNot declared by the manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp class=\"foot\" style=\"padding-top: 10px;\"\u003eMANUFACTURER'S DATA · DIMENSIONS APPROXIMATE, TOLERANCE ±1 MM · SPECIFICATIONS MAY CHANGE WITHOUT NOTICE\u003c\/p\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e04\u003c\/u\u003e\u003ch3\u003eComplete the system\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pair\"\u003e\n\u003ca href=\"\/en\/products\/sp-bt-18\"\u003e\u003csmall\u003eBATTERY TERMINAL\u003c\/small\u003e\u003cstrong\u003eSP-BT 18 — 2×0\/4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-bt-06\"\u003e\u003csmall\u003eBATTERY TERMINAL + VOLTMETER\u003c\/small\u003e\u003cstrong\u003eSP-BT 06 — 1×0 + 1×4 + 2×8 GA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/a\"\u003e\u003csmall\u003eSP AGM BATTERY · 100 Ah\u003c\/small\u003e\u003cstrong\u003eSP-100A — 1800 A CCA\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/en\/products\/sp-80a\"\u003e\u003csmall\u003eSP AGM BATTERY · 80 Ah\u003c\/small\u003e\u003cstrong\u003eSP-80A — 1100 A CCA\u003c\/strong\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e05\u003c\/u\u003e\u003ch3\u003eBefore you install it\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"warn\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDisconnect the battery first.\u003c\/b\u003e Remove the negative (−) cable first, then the positive (+). Reconnect in the opposite order: positive first, negative last.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuse the positive line.\u003c\/b\u003e An inline fuse holder within 20 cm (8 in) of the battery on every positive cable that leaves the terminal. No fuse, no fire protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCheck polarity twice.\u003c\/b\u003e Each terminal is marked + or −. Never force a terminal onto the wrong post: reversed polarity is not covered by warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNever smaller than 4 AWG.\u003c\/b\u003e Size cable and fuse for the total current of your system, following the amplifier data. Never use a cable smaller than 4 AWG in these ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTorque rule of thumb.\u003c\/b\u003e Tight enough that cables and terminal cannot be moved by hand, never so tight that screw heads or clamp deform. Re-check after the first drive.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003cdiv class=\"sec\"\u003e\n\u003cu\u003e06\u003c\/u\u003e\u003ch3\u003eQuestions installers ask\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq\"\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhy \"4 × 0\/4 GA\"?\u003c\/b\u003eFour cable inputs in total, two per terminal, and each one accepts cable from 0 AWG to 4 AWG.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhich cable size should I use?\u003c\/b\u003e0 AWG (53.5 mm²) for the main feed of large systems and long runs, 4 AWG (21.2 mm²) for medium systems and short branch feeds. Never smaller than 4 AWG.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eHow big is it?\u003c\/b\u003eAbout 85 × 44 × 20 mm, with a Ø 17 mm post hole and two Ø 14 mm cable inputs per terminal.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat should I measure after installing it?\u003c\/b\u003eAbout 12.4–12.8 V at the terminal with the engine off, about 13.8–14.6 V with the engine running, and a voltage drop across each connection under load as close to 0 V as possible.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eWhat current does it handle?\u003c\/b\u003eThe manufacturer does not declare a current rating. Size cable and fuse for the total current of your system: ask us and we will check it with you.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sup\"\u003e\n\u003cb\u003eFree technical support from Italy.\u003c\/b\u003e Write or call and a person answers, with the real data of the product sheets. Tell us what you want to build — amplifier power, cable gauges, number of batteries — and we will help you match it.\u003cbr\u003e\u003ca href=\"mailto:spaudio@spaudio.it\"\u003espaudio@spaudio.it\u003c\/a\u003e · +39 340 807 8778\u003c\/div\u003e\n\u003cp class=\"paym\"\u003eAccepted payment methods\u003cbr\u003eVisa · Mastercard · Maestro · American Express · PayPal · Apple Pay · Google Pay · Shop Pay · Klarna\u003c\/p\u003e\n\u003cp class=\"fine\"\u003eSP Audio — Super Power Audio. Designed in Italy by Audiocar Import \u0026amp; Export SRLS, Milano, official SP Audio distributor for Europe.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"inLanguage\": \"en\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Why \\\"4 × 0\/4 GA\\\"?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Four cable inputs in total, two per terminal, and each one accepts cable from 0 AWG to 4 AWG.\"}}, {\"@type\": \"Question\", \"name\": \"Which cable size should I use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"0 AWG (53.5 mm²) for the main feed of large systems and long runs, 4 AWG (21.2 mm²) for medium systems and short branch feeds. Never smaller than 4 AWG.\"}}, {\"@type\": \"Question\", \"name\": \"How big is it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"About 85 × 44 × 20 mm, with a Ø 17 mm post hole and two Ø 14 mm cable inputs per terminal.\"}}, {\"@type\": \"Question\", \"name\": \"What should I measure after installing it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"About 12.4–12.8 V at the terminal with the engine off, about 13.8–14.6 V with the engine running, and a voltage drop across each connection under load as close to 0 V as possible.\"}}, {\"@type\": \"Question\", \"name\": \"What current does it handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The manufacturer does not declare a current rating. Size cable and fuse for the total current of your system: ask us and we will check it with you.\"}}]}\u003c\/script\u003e\n\u003c\/div\u003e","brand":"spaudio","offers":[{"title":"Default Title","offer_id":50806387638615,"sku":"79500","price":42.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/files\/1_22cf6873-17c7-4384-8bef-638f16b63355.webp?v=1773059023"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0645\/6829\/5636\/collections\/AGM_BATT.webp?v=1771658019","url":"https:\/\/spaudio.com.mx\/en\/collections\/agm-battery-1.oembed","provider":"spaudio","version":"1.0","type":"link"}