{"product_id":"limitless-lithium-retro-pro-56-battery","title":"Limitless Lithium Retro Pro 56 Battery","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003cbr\u003eThe Limitless Lithium Retro Pro 56 is a high-output \u003cstrong\u003e12V LiFePO4 battery\u003c\/strong\u003e engineered for demanding car audio and automotive electrical systems. With a 750A continuous discharge capability, up to 1,300A burst output, and support for approximately 9,000–13,000 watts depending on alternator capacity, it provides the high-current delivery and voltage stability required for serious audio builds. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Technical Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e56Ah LiFePO4 capacity\u003c\/strong\u003e with a manufacturer-rated \u003cstrong\u003e200–240Ah lead-acid equivalent\u003c\/strong\u003e capacity. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e750A continuous discharge current\u003c\/strong\u003e for sustained high-current applications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,200–1,300A burst discharge capability\u003c\/strong\u003e, temperature dependent. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupports approximately \u003cstrong\u003e9,000–13,000W continuous system output\u003c\/strong\u003e, depending on alternator size, with up to \u003cstrong\u003e16,000W burst capability\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2,000 life cycles at 80% depth of discharge\u003c\/strong\u003e for long-term performance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13.1–13.4V resting voltage range\u003c\/strong\u003e with a \u003cstrong\u003e14.8V maximum charge voltage\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal balance board\u003c\/strong\u003e for cell balancing; the battery does \u003cstrong\u003enot include a BMS\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroup 24 case size\u003c\/strong\u003e, measuring approximately \u003cstrong\u003e10.125\" W × 6.5\" D × 8.75\" H\u003c\/strong\u003e and weighing 21 lbs. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM8 × 1.25 terminals\u003c\/strong\u003e with positive terminal positioned on the left. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e12V automotive electrical systems\u003c\/strong\u003e and high-output car audio applications.\u003c\/li\u003e\n\u003cli\u003eIdeal for \u003cstrong\u003eSPL systems, competition builds, multi-amplifier installations, and high-powered subwoofer systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eSuitable for systems using approximately \u003cstrong\u003e100A–400A alternators\u003c\/strong\u003e, depending on desired continuous power output. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGroup 24 form factor\u003c\/strong\u003e provides compatibility with many battery mounting locations designed around this case size.\u003c\/li\u003e\n\u003cli\u003eSuitable as a \u003cstrong\u003eprimary or auxiliary battery\u003c\/strong\u003e when properly integrated into the vehicle's electrical system.\u003c\/li\u003e\n\u003cli\u003eMaximum charging voltage is \u003cstrong\u003e14.8V\u003c\/strong\u003e; charging above the manufacturer's specifications should be avoided. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum recommended charging current is \u003cstrong\u003e400A\u003c\/strong\u003e; exceeding this can reduce battery cycle life. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Choose This:\u003c\/strong\u003e\u003cbr\u003eThe Limitless Lithium Retro Pro 56 combines LiFePO4 chemistry, extreme current delivery, long cycle life, and substantial power-handling capability in a compact Group 24 package, making it a serious electrical upgrade for high-performance car audio systems.\u003c\/p\u003e","brand":"Limitless Lithium","offers":[{"title":"Default Title","offer_id":58770370986144,"sku":null,"price":1339.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/5308\/3808\/files\/retro_56_1__34741.1655491046__25797.1700238317.webp?v=1787769903","url":"https:\/\/www.seriousinnovations.com\/products\/limitless-lithium-retro-pro-56-battery","provider":"serious innovations","version":"1.0","type":"link"}