{"product_id":"12v-100ah-lifepo4-battery-group-31-long-life-deep-cycle","title":"12V 100Ah LiFePO4 Battery Group 31 - Long Life Deep Cycle","description":"\u003cp\u003eOur review of the 12V 100Ah LiFePO4 Battery Group 31 finds it best suited for owners of RVs, boats, small off-grid solar systems and van conversions who need a durable deep cycle replacement that stays light. The single biggest reason to consider this unit is its emphasis on long lifespan: GREENOE packages Grade A+ LiFePO4 cells with a claimed 15000+ charge-discharge cycles and a 36-month warranty, which promises a decade or more of reliable service if used correctly. The review covers performance, cold-weather behavior and real customer feedback on charging quirks.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade A+ Cells:\u003c\/strong\u003e Uses higher energy density LiFePO4 cells that are described as stable and intended to deliver a long usable life compared with typical lead acid replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Lifespan:\u003c\/strong\u003e The manufacturer states 15000+ cycles, which suggests this battery is designed for heavy daily cycling and long-term cost efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in 100A BMS:\u003c\/strong\u003e Integrated battery management protects against over-charge, over-discharge, over-current and short-circuit, reducing the chance of user error causing damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Low Temperature Cut-Off:\u003c\/strong\u003e The BMS blocks charging below 32F and discharging below -4F to protect cells in freezing conditions, useful for winterized RVs and cabins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Group 31 Size:\u003c\/strong\u003e At roughly 12.9 in x 6.7 in x 8.6 in and 22.48 lbs, it fits Group 31 boxes and is noticeably lighter than equivalent lead acid batteries for easier installation and transport.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable Flexibility:\u003c\/strong\u003e Supports series and parallel connections for higher voltage or capacity, and a short burst discharge up to 300A for high-load trolling motors and inverter starts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis battery is a strong option for RV owners, boaters running trolling motors, off-grid solar users and van converters who need a durable deep cycle battery that is compact and lighter than lead acid. The long cycle life and integrated BMS make it attractive for people who expect repeated charge-discharge cycles and want lower replacement frequency.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include users needing a true starter battery for engine cranking or people who cannot provide a proper 14.6V LiFePO4 charger; a standard 12V charger will not fully charge this chemistry and some customers reported voltages that did not exceed about 13.3V without the correct charger.\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\u003eLong rated lifespan and Grade A+ cells promise durable performance for many years of cycling.\u003c\/li\u003e\n\u003cli\u003eLightweight and Group 31 compatible, making installation easier in tight spaces.\u003c\/li\u003e\n\u003cli\u003eBuilt-in BMS and temperature control add safety and protect the battery in cold conditions.\u003c\/li\u003e\n\u003cli\u003eExpandable in series or parallel to suit higher voltage or capacity needs.\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-compatible charger to fully charge; some buyers report the battery not rising above ~13.3V with standard 12V chargers.\u003c\/li\u003e\n\u003cli\u003eNot designed for engine starting; optimized for deep-cycle use such as trolling motors and house loads.\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\u003e12.8V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e100Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell Chemistry\u003c\/td\u003e\n\u003ctd\u003eLiFePO4 (Grade A+)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMS\u003c\/td\u003e\n\u003ctd\u003eBuilt-in 100A with temperature cut-off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Short Burst Discharge\u003c\/td\u003e\n\u003ctd\u003e300A (3 seconds)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e12.9 in x 6.7 in 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\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor users who need a dependable, lightweight Group 31 deep cycle battery, this GREENOE 12V 100Ah LiFePO4 unit represents good value thanks to long cycle life, integrated protections and compact size. It is especially suited to solar setups, RV house systems and marine trolling motors, provided the owner uses a correct 14.6V LiFePO4 charger and understands it is not a starter battery.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill a standard 12V charger work?\u003c\/strong\u003e\u003cbr\u003eA standard 12V charger will not fully charge a LiFePO4 battery; use a 14.6V 0.2V LiFePO4-compatible adapter or charger to bring it to full state of charge.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan multiple batteries be combined?\u003c\/strong\u003e\u003cbr\u003eYes, batteries can be connected in series for higher voltage (up to 51.2V with 4 in series) or in parallel to increase capacity; follow proper balancing and connection procedures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this battery waterproof for marine use?\u003c\/strong\u003e\u003cbr\u003eThe battery has an IP65 rating, making it resistant to water jets and suitable for many marine and outdoor installations, though it should not be submerged.\u003c\/p\u003e","brand":"GREENOE","offers":[{"title":"Default Title","offer_id":48240951951579,"sku":"B0DH1W967C","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61xutYVzd8L._AC_SL1500.jpg?v=1771008518","url":"https:\/\/gearmusthave.com\/products\/12v-100ah-lifepo4-battery-group-31-long-life-deep-cycle","provider":"GearMustHave","version":"1.0","type":"link"}