{"product_id":"12v-240ah-lithium-marine-battery","title":"Abyss Battery  12V 240Ah Dual Purpose Lithium Marine Battery - AB-12V240-BT","description":"\u003cdiv title=\"Page 18\" class=\"page\"\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003ch2\u003eAbyss Battery  12V 240Ah Dual Purpose Lithium Marine Battery - AB-12V240-BT\u003c\/h2\u003e\n\u003cp\u003eThe  is a high capacity Group 49 Lithium-Iron-Phosphate battery engineered with the strongest 200A BMS rating of its class and designed with mid-sized center console boats power needs in mind. The 12V 240Ah has dual purpose capabilities and features making it ideal for starting outboard motors and supplying enough power for worry free overnight trips at sea. \u003cbr\u003e\u003cbr\u003eThis battery will also accept charge from your engine’s alternator with no additional equipment necessary and is equipped with built-in Bluetooth connectivity, which allows the user to wirelessly monitor battery health, operation status and troubleshoot diagnostics. Our dual purpose lithium battery is ideal for powering Seakeeper systems, A\/C refrigeration, chill plates, and other high energy storage applications. \u003c\/p\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1k6niez\" data-start=\"28\" data-end=\"304\"\u003e\n\u003cstrong data-start=\"30\" data-end=\"68\"\u003eExtreme-capacity marine power bank\u003c\/strong\u003e – The AB-12V240-BT is engineered as a \u003cstrong data-start=\"107\" data-end=\"145\"\u003e240Ah LiFePO₄ dual-purpose battery\u003c\/strong\u003e, delivering massive usable energy for extended offshore trips, high-demand electronics, and overnight marine autonomy. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"y50d2h\" data-start=\"305\" data-end=\"582\"\u003e\n\u003cstrong data-start=\"307\" data-end=\"335\"\u003eTrue dual-purpose design\u003c\/strong\u003e – Built to handle both \u003cstrong data-start=\"359\" data-end=\"399\"\u003eengine starting and deep-cycle loads\u003c\/strong\u003e, making it suitable for powering outboards while also running heavy onboard systems like refrigeration, electronics, and navigation equipment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hn6ize\" data-start=\"583\" data-end=\"832\"\u003e\n\u003cstrong data-start=\"585\" data-end=\"616\"\u003eHigh-output BMS performance\u003c\/strong\u003e – Features a robust \u003cstrong data-start=\"637\" data-end=\"702\"\u003e200A continuous discharge BMS with high peak surge capability\u003c\/strong\u003e, ensuring reliable cranking power and stable high-load output under demanding conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jasbgi\" data-start=\"833\" data-end=\"1086\"\u003e\n\u003cstrong data-start=\"835\" data-end=\"881\"\u003eMassive usable energy (no wasted capacity)\u003c\/strong\u003e – Unlike lead-acid systems, LiFePO₄ chemistry provides near-full usable capacity, delivering longer runtime per charge cycle and more consistent voltage under load. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"pjnhlc\" data-start=\"1087\" data-end=\"1322\"\u003e\n\u003cstrong data-start=\"1089\" data-end=\"1119\"\u003eBluetooth smart monitoring\u003c\/strong\u003e – Integrated Bluetooth BMS allows real-time tracking of \u003cstrong data-start=\"1176\" data-end=\"1234\"\u003estate of charge, voltage, temperature, and diagnostics\u003c\/strong\u003e, improving safety and trip planning efficiency. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t5ezxx\" data-start=\"1323\" data-end=\"1561\"\u003e\n\u003cstrong data-start=\"1325\" data-end=\"1381\"\u003eMarine-grade durability built for harsh environments\u003c\/strong\u003e – Designed with sealed construction, vibration resistance, and IP-rated protection to withstand saltwater exposure and offshore conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1uj9lo8\" data-start=\"1562\" data-end=\"1773\"\u003e\n\u003cstrong data-start=\"1564\" data-end=\"1592\"\u003eSystem-ready integration\u003c\/strong\u003e – Alternator-compatible charging and multi-unit expandability make it suitable for larger boat electrical systems and modular energy upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:5c6707ee-0202-4d8f-8cd2-91ebfa6b2797-13\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:5c6707ee-0202-4d8f-8cd2-91ebfa6b2797-13\" data-turn-id-container=\"request-WEB:5c6707ee-0202-4d8f-8cd2-91ebfa6b2797-13\" data-testid=\"conversation-turn-28\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"d65301a2-fb1d-4a18-b027-c07d5b01b8e0\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"256\"\u003e\u003cstrong data-start=\"0\" data-end=\"88\"\u003eQ: What is the Abyss Battery 12V 240Ah Dual Purpose Lithium Marine Battery used for?\u003c\/strong\u003e\u003cbr data-start=\"88\" data-end=\"91\"\u003eA: It is a high-capacity LiFePO4 marine battery designed for both engine starting and deep-cycle use, powering large boats, trolling motors, and onboard electronics.\u003c\/p\u003e\n\u003cp data-start=\"258\" data-end=\"483\"\u003e\u003cstrong data-start=\"258\" data-end=\"315\"\u003eQ: What does “dual purpose” mean in the AB-12V240-BT?\u003c\/strong\u003e\u003cbr data-start=\"315\" data-end=\"318\"\u003eA: It means the battery can deliver high cranking power for starting marine engines while also providing long-duration deep-cycle energy for accessories and systems.\u003c\/p\u003e\n\u003cp data-start=\"485\" data-end=\"674\"\u003e\u003cstrong data-start=\"485\" data-end=\"543\"\u003eQ: Is this battery suitable for large trolling motors?\u003c\/strong\u003e\u003cbr data-start=\"543\" data-end=\"546\"\u003eA: Yes, its 240Ah capacity makes it ideal for high-demand trolling motors and extended offshore or all-day boating applications.\u003c\/p\u003e\n\u003cp data-start=\"676\" data-end=\"872\"\u003e\u003cstrong data-start=\"676\" data-end=\"737\"\u003eQ: What are the benefits compared to lead-acid batteries?\u003c\/strong\u003e\u003cbr data-start=\"737\" data-end=\"740\"\u003eA: It is significantly lighter, offers nearly 100% usable capacity, charges faster, lasts 3000+ cycles, and requires no maintenance.\u003c\/p\u003e\n\u003cp data-start=\"874\" data-end=\"1063\"\u003e\u003cstrong data-start=\"874\" data-end=\"918\"\u003eQ: Does it support Bluetooth monitoring?\u003c\/strong\u003e\u003cbr data-start=\"918\" data-end=\"921\"\u003eA: Yes, it includes a Bluetooth-enabled BMS for real-time monitoring of voltage, state of charge, temperature, and performance via mobile app.\u003c\/p\u003e\n\u003cp data-start=\"1065\" data-end=\"1258\"\u003e\u003cstrong data-start=\"1065\" data-end=\"1116\"\u003eQ: Can it replace multiple lead-acid batteries?\u003c\/strong\u003e\u003cbr data-start=\"1116\" data-end=\"1119\"\u003eA: Yes, it can replace multiple large AGM or lead-acid batteries depending on system configuration, reducing weight and simplifying wiring.\u003c\/p\u003e\n\u003cp data-start=\"1260\" data-end=\"1442\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1260\" data-end=\"1303\"\u003eQ: What charging system is recommended?\u003c\/strong\u003e\u003cbr data-start=\"1303\" data-end=\"1306\"\u003eA: A lithium-compatible charger with a LiFePO4 profile (typically 14.4V–14.6V) is recommended for safe and optimal charging performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"5cgqbm\" data-start=\"127\" data-end=\"239\"\u003eUse only a \u003cstrong data-start=\"140\" data-end=\"176\"\u003e14.4V LiFePO4-compatible charger\u003c\/strong\u003e (never lead-acid mode) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"mihbyk\" data-start=\"240\" data-end=\"342\"\u003eAvoid \u003cstrong data-start=\"248\" data-end=\"283\"\u003edeep discharge below 10V cutoff\u003c\/strong\u003e to protect the BMS \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w2y2yl\" data-start=\"343\" data-end=\"449\"\u003eKeep operating charge range at \u003cstrong data-start=\"376\" data-end=\"409\"\u003e0°C to 55°C for safe charging\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f60lnd\" data-start=\"450\" data-end=\"557\"\u003eStore at \u003cstrong data-start=\"461\" data-end=\"517\"\u003e40–60% charge in cool, dry conditions (-5°C to 45°C)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"33anbj\" data-start=\"558\" data-end=\"669\"\u003eRecharge after each use to maximize \u003cstrong data-start=\"596\" data-end=\"629\"\u003ecycle life (3000–6000 cycles)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"vb8vxk\" data-start=\"670\" data-end=\"730\"\u003eDo not leave at \u003cstrong data-start=\"688\" data-end=\"728\"\u003e100% charge for long storage periods\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1faeffs\" data-start=\"731\" data-end=\"823\"\u003eKeep terminals \u003cstrong data-start=\"748\" data-end=\"821\"\u003eclean, tight, and corrosion-free (marine salt protection is critical)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bs159x\" data-start=\"824\" data-end=\"905\"\u003eUse Bluetooth app to monitor \u003cstrong data-start=\"855\" data-end=\"903\"\u003evoltage, temperature, SOC, and health status\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1uh45g5\" data-start=\"906\" data-end=\"999\"\u003eAvoid exceeding \u003cstrong data-start=\"924\" data-end=\"959\"\u003e200A continuous discharge limit\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"n7drb8\" data-start=\"1000\" data-end=\"1072\"\u003eEnsure proper ventilation in boat compartments during heavy load use\u003c\/li\u003e\n\u003cli data-section-id=\"kz8kpp\" data-start=\"1073\" data-end=\"1199\"\u003eProtect from \u003cstrong data-start=\"1088\" data-end=\"1159\"\u003eshock, vibration, and saltwater spray (IP65-rated, not submersible)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"119f9d4\" data-start=\"1200\" data-end=\"1253\"\u003eDo not open or modify the \u003cstrong data-start=\"1228\" data-end=\"1251\"\u003einternal BMS system\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rz3gfv\" data-start=\"1254\" data-end=\"1315\"\u003eDisconnect during long storage to prevent parasitic drain\u003c\/li\u003e\n\u003cli data-section-id=\"cli44y\" data-start=\"1316\" data-end=\"1382\"\u003eAllow battery to warm before heavy load use in cold conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Abyss Battery","offers":[{"title":"Bluetooth® \/ Group 49","offer_id":45672061993151,"sku":"AB-12V240-BT","price":2374.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/abyss-battery-r-12v-240ah-dual-purpose-marine-lithium-battery-abyss-battery-1.jpg?v=1780266315","url":"https:\/\/backyardprovider.com\/products\/12v-240ah-lithium-marine-battery","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}