{"product_id":"12v-100ah-lifepo4-battery-group-31-long-life-1280wh-power","title":"12V 100Ah LiFePO4 Battery Group 31 - Long-Life 1280Wh Power","description":"\u003cp\u003eOur review of the 12V 100Ah LiFePO4 Battery finds it best suited for anyone needing a lightweight, high-cycle energy bank for RVs, marine trolling motors, vans, or home backup. The single biggest reason to buy is the long lifetime and high cycle count: the Grade A+ LiFePO4 cells promise up to 15,000 deep cycles and a decade of dependable service, which makes this battery a compelling choice when replacing heavy lead-acid units or building a modular battery bank.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in 100A BMS:\u003c\/strong\u003e Protects the battery from overcharge, over-discharge and short circuit, helping ensure reliable operation in mobile and stationary setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh cycle life:\u003c\/strong\u003e Grade A+ LiFePO4 cells are rated for a very long lifespan, offering years of use before capacity drop becomes a concern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable configuration:\u003c\/strong\u003e Multiple 12V 100Ah units can be combined up to 51.2V and 20.48kWh (4P4S) to match larger power requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Group 31 form factor:\u003c\/strong\u003e At about 22.5 lbs and compact dimensions, it fits Group 31 trays and is far easier to handle than lead-acid alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh short-term discharge:\u003c\/strong\u003e Supports a max discharge current of 300A for up to 3 seconds, useful for demanding loads like trolling motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP65 splash protection:\u003c\/strong\u003e Offers protection against water spray and dust, appropriate for marine and outdoor use when installed correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis battery is a solid match for RV owners, boaters using trolling motors, van lifers, and homeowners wanting a compact backup battery who value long life and light weight. It is especially useful for people who plan to build modular battery banks or need a drop-in Group 31 sized unit that reduces installation weight and space.\u003c\/p\u003e\n\u003cp\u003eIt is not intended as a starter battery for engines, a golf cart starter pack, or for jack use; those applications require different battery types and starting profiles. Also, users who cannot follow the activation and charging guidance with a 14.6V LiFePO4 charger should look at alternatives that match their existing chargers.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery long expected lifespan from Grade A+ LiFePO4 cells, suitable for long-term energy storage.\u003c\/li\u003e\n\u003cli\u003eLightweight and Group 31 compatible dimensions make handling and retrofits easier than lead-acid.\u003c\/li\u003e\n\u003cli\u003eExpandable to higher voltages and capacities for modular systems.\u003c\/li\u003e\n\u003cli\u003eBuilt-in 100A BMS and IP65 rating increase reliability in mobile and outdoor installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires a 14.6V LiFePO4 charger to activate and fully charge; standard 12V lead-acid chargers will not work.\u003c\/li\u003e\n\u003cli\u003eSome users report mixed charge acceptance and early-life issues, so initial testing on receipt is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e12V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e100Ah (1280Wh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in BMS\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize (L x W x H)\u003c\/td\u003e\n\u003ctd\u003e12.9 x 6.7 x 8.6 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e22.48 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax short discharge\u003c\/td\u003e\n\u003ctd\u003e300A for 3 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress protection\u003c\/td\u003e\n\u003ctd\u003eIP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 12V 100Ah LiFePO4 Group 31 battery is a worthwhile buy for RV, marine trolling motor, van conversion, and backup applications where long life, light weight, and modular expandability matter. It offers strong value versus lead-acid if you can follow the activation and charging requirements and accept that some units may need initial testing for charge acceptance.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a special charger?\u003c\/strong\u003e\u003cbr\u003eYes. Use a 14.6V LiFePO4 charger to activate and fully charge the battery; 12V lead-acid chargers are not supported.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these be connected in series or parallel?\u003c\/strong\u003e\u003cbr\u003eYes. They can be combined up to 51.2V or 20.48kWh (4P4S), but ensure batteries are fully charged and within 0.2V before series connection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this battery suitable for engine starting?\u003c\/strong\u003e\u003cbr\u003eNo. It is intended for energy storage and deep cycle use, not as a starter battery for engines.\u003c\/p\u003e","brand":"GRNOE","offers":[{"title":"Default Title","offer_id":48616011825371,"sku":"B0FD3KP5QY","price":319.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71W0EhPMUTL._AC_SL1500.jpg?v=1778585824","url":"https:\/\/gearmusthave.com\/products\/12v-100ah-lifepo4-battery-group-31-long-life-1280wh-power","provider":"GearMustHave","version":"1.0","type":"link"}