{"product_id":"12v-100ah-lifepo4-lithium-battery-group-31-compact-high-capacity","title":"12V 100Ah LiFePO4 Lithium Battery Group 31 - Compact High-Capacity","description":"\u003cp\u003eIn this review of the 12V 100Ah LiFePO4 lithium battery the bottom line is straightforward: this compact Group 31 battery is aimed at users who need a lightweight, long-lived 12V power source for RVs, solar backup, trolling motors or portable setups. The single biggest reason to buy is the combination of a true 1280Wh usable capacity in a small 12.9in by 6.6in by 8.5in package and a built-in 100A BMS that protects the pack while allowing reliable continuous output. Customers who value cycle life and weight will find it a practical replacement for heavier lead acid options.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini size, full capacity:\u003c\/strong\u003e The compact dimensions and 22 lb weight fit a BCI Group 31 battery box while still delivering 1280Wh of usable energy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in 100A BMS:\u003c\/strong\u003e The integrated battery management system protects against overcharge, over-discharge and over-current, improving safety and longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-temperature protection:\u003c\/strong\u003e The pack includes a high-temperature cutoff and protections that help prevent damage during extreme charging conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple charging options:\u003c\/strong\u003e Recharge by a dedicated LiFePO4 charger, solar panel with controller, or alternator for flexible recharging in the field or at home.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable connections:\u003c\/strong\u003e Batteries can be paralleled or put in series to reach higher capacity up to 400Ah or voltages up to 51.2V for larger systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong cycle life:\u003c\/strong\u003e LiFePO4 chemistry yields thousands of cycles and an expected service life of up to 10 years in typical use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis battery suits RV owners, off-grid solar users, and boaters who need a high-capacity 12V source without the weight and maintenance of lead acid batteries. It is particularly useful for anglers using 30-70 lb trolling motors, or anyone who wants a compact backup that fits a Group 31 box.\u003c\/p\u003e\u003cp\u003eIt is not the best choice for users who require higher-than-100A continuous discharge for long periods, or for installations that cannot accommodate a LiFePO4 charge profile; those users should consider alternate battery types or professional system design advice.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh usable energy of 1280Wh in a lightweight 22 lb package improves portability and run time.\u003c\/li\u003e\n\u003cli\u003eBuilt-in 100A BMS offers overcharge, over-discharge and over-current protection for safer operation.\u003c\/li\u003e\n\u003cli\u003eFlexible charging options and support for parallel\/series expansion make it adaptable for many systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e100A continuous discharge is adequate for most loads but may limit very high-draw applications.\u003c\/li\u003e\n\u003cli\u003eSize should be checked against application since the mini dimensions are nonstandard compared with some Group 31 variations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal voltage\u003c\/td\u003e\n\u003ctd\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e100Ah (1280Wh usable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e12.9in x 6.6in x 8.5in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e22 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous discharge current\u003c\/td\u003e\n\u003ctd\u003e100A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003eUp to 4000 cycles at 100% DOD; longer at reduced DOD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging options\u003c\/td\u003e\n\u003ctd\u003eLiFePO4 charger, solar with controller, or alternator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 12V 100Ah LiFePO4 battery is a strong value for anyone replacing lead acid or adding a compact bank for RV, solar, or marine use. Its high usable capacity, light weight and built-in protections make it a practical long-term choice for most 12V applications, especially where weight and cycle life matter.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this battery be used in parallel or series?\u003c\/strong\u003e\u003cbr\u003eYes, the battery supports parallel and series connections to expand capacity up to 400Ah or voltage up to 51.2V.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat charging methods are supported?\u003c\/strong\u003e\u003cbr\u003eIt can be charged with a LiFePO4 charger (recommended 14.6V 20A), solar panel with a controller, or an alternator\/generator.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long will the battery last in service?\u003c\/strong\u003e\u003cbr\u003eLiFePO4 chemistry offers a long service life, typically around 4000 cycles at full depth of discharge and up to a 10-year expected lifespan under normal use.\u003c\/p\u003e","brand":"VEMDIA","offers":[{"title":"Default Title","offer_id":48643958046939,"sku":"B0DST42S9Y","price":169.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71F6wrvMRkL._AC_SL1500.jpg?v=1778543243","url":"https:\/\/gearmusthave.com\/products\/12v-100ah-lifepo4-lithium-battery-group-31-compact-high-capacity","provider":"GearMustHave","version":"1.0","type":"link"}