{"product_id":"12v-120ah-lithium-group-31-deep-cycle-battery","title":"12V 120Ah LiFePO4 Group 31 Deep Cycle Lithium Battery","description":"\u003ch2\u003eEnerwatt EWLI-12V120 12V 120Ah LiFePO4 Group 31 Deep Cycle Battery\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEnerwatt EWLI-12V120 12V 120Ah LiFePO4 Battery\u003c\/strong\u003e is a high-capacity \u003cstrong\u003eGroup 31 lithium deep cycle battery\u003c\/strong\u003e designed for dependable power in RVs, boats, solar energy systems, off-grid cabins, camper vans, trailers, camping setups, and auxiliary 12V power applications. Built with advanced \u003cstrong\u003eLiFePO4 lithium iron phosphate chemistry\u003c\/strong\u003e, this battery delivers long cycle life, stable voltage, efficient energy storage, and reduced weight compared to many traditional lead-acid or AGM deep cycle batteries.\u003c\/p\u003e\n\n\u003cp\u003eWith a nominal voltage of \u003cstrong\u003e12.8V\u003c\/strong\u003e, a capacity of \u003cstrong\u003e120Ah\u003c\/strong\u003e, and an energy rating of \u003cstrong\u003e1,536Wh\u003c\/strong\u003e, the EWLI-12V120 is ideal for users who need more stored energy in a rugged, practical Group 31 format. Its \u003cstrong\u003e150A maximum constant discharge current\u003c\/strong\u003e and \u003cstrong\u003e125A maximum charging current\u003c\/strong\u003e make it a strong option for properly sized RV, marine, solar, inverter, and off-grid systems.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose the Enerwatt EWLI-12V120?\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e12.8V 120Ah LiFePO4 battery\u003c\/strong\u003e with \u003cstrong\u003e1,536Wh\u003c\/strong\u003e of stored energy\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroup 31 case size\u003c\/strong\u003e for RV, marine, solar, trailer, and off-grid installations\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e150A maximum constant discharge current\u003c\/strong\u003e for demanding deep cycle applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e125A maximum charging current\u003c\/strong\u003e with a recommended charging current of \u003cstrong\u003e30A\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLiFePO4 lithium iron phosphate chemistry\u003c\/strong\u003e for stable, long-lasting power\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4000 expected cycles at 80% depth of discharge\u003c\/strong\u003e under specified test conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e15-year design life expectancy\u003c\/strong\u003e under proper operating conditions\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntegrated BMS protection\u003c\/strong\u003e for voltage, current, temperature, short circuit, and cell balancing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight lithium design\u003c\/strong\u003e at approximately \u003cstrong\u003e15 kg\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e96-month warranty\u003c\/strong\u003e for long-term confidence\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eEnerwatt 12V 120Ah lithium battery\u003c\/strong\u003e is built for deep cycle power systems that need reliable capacity, strong discharge performance, and long service life. It is well suited for:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRV house battery upgrades\u003c\/li\u003e\n  \u003cli\u003eTravel trailers, fifth wheels, and camper vans\u003c\/li\u003e\n  \u003cli\u003eMarine electronics and boat accessory power\u003c\/li\u003e\n  \u003cli\u003eCompatible 12V trolling motor applications\u003c\/li\u003e\n  \u003cli\u003eSolar battery banks and renewable energy storage\u003c\/li\u003e\n  \u003cli\u003eOff-grid cabins and remote power systems\u003c\/li\u003e\n  \u003cli\u003eCamping, overlanding, and portable 12V power setups\u003c\/li\u003e\n  \u003cli\u003eBackup power and auxiliary energy storage\u003c\/li\u003e\n  \u003cli\u003eInverter-supported 12V power systems when properly sized\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuilt for RV, Marine, Solar \u0026amp; Off-Grid Power\u003c\/h3\u003e\n\n\u003cp\u003eThe EWLI-12V120 is a practical lithium upgrade for many compatible Group 31 deep cycle battery systems. For RV and camper use, it can support properly sized 12V loads such as lighting, fans, water pumps, refrigerators, control panels, furnace fans, and inverter systems. For marine applications, it can provide dependable power for onboard electronics, fish finders, lighting, accessories, and compatible trolling motor systems.\u003c\/p\u003e\n\n\u003cp\u003eFor solar and off-grid applications, the \u003cstrong\u003e1,536Wh energy capacity\u003c\/strong\u003e makes this battery a strong choice for storing renewable power in cabins, trailers, mobile work setups, and remote power systems. Its LiFePO4 chemistry helps deliver stable voltage and efficient usable capacity over repeated charge and discharge cycles.\u003c\/p\u003e\n\n\u003ch3\u003eHigh-Capacity Lithium Performance\u003c\/h3\u003e\n\n\u003cp\u003eCompared to traditional lead-acid batteries, LiFePO4 batteries can provide improved usable capacity, longer cycle life, lower maintenance, and more stable voltage output when used with a compatible charging system. The Enerwatt EWLI-12V120 is designed for deep cycle applications where long-term reliability and efficient energy storage are important.\u003c\/p\u003e\n\n\u003cp\u003eWith an expected cycle life of \u003cstrong\u003e4000 cycles at 80% depth of discharge\u003c\/strong\u003e and a design life expectancy of up to \u003cstrong\u003e15 years\u003c\/strong\u003e under specified conditions, this battery is built for users who want a long-lasting power solution for recreational, marine, solar, and off-grid systems.\u003c\/p\u003e\n\n\u003ch3\u003eIntegrated Battery Management System\u003c\/h3\u003e\n\n\u003cp\u003eThe built-in \u003cstrong\u003eBattery Management System\u003c\/strong\u003e provides complete battery management and protection. It monitors voltage, current, temperature, and cell balance to help protect the battery during charging, discharging, storage, and everyday operation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCell voltage protection\u003c\/li\u003e\n  \u003cli\u003eModule voltage protection\u003c\/li\u003e\n  \u003cli\u003eOver-current charge protection\u003c\/li\u003e\n  \u003cli\u003eOver-current discharge protection\u003c\/li\u003e\n  \u003cli\u003eTemperature warning and protection\u003c\/li\u003e\n  \u003cli\u003eShort-circuit protection\u003c\/li\u003e\n  \u003cli\u003ePCB temperature protection\u003c\/li\u003e\n  \u003cli\u003ePassive cell balancing\u003c\/li\u003e\n  \u003cli\u003eState of charge monitoring\u003c\/li\u003e\n  \u003cli\u003eLow-power sleep mode to reduce energy consumption during storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEnerwatt\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eModel \/ SKU\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eEWLI-12V120\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInternal Part Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e10-121-20017\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eDeep Cycle Battery\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eLiFePO4 \/ Lithium Iron Phosphate\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBattery Group Size\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eGroup 31\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e12.8V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e120Ah\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eEnergy Rating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1,536Wh\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCharging Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e14.0V – 14.4V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eFloat Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e13.5V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDischarge Cut-Off Voltage\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e9.6V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eRecommended Charging Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e30A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMaximum Charging Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e125A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eMaximum Constant Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e150A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDischarge Rate\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1.25C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCycle Life\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e4000 cycles at 80% DOD, 0.5C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDesign Life Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e15 years\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBluetooth Monitoring\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eNo — Bluetooth is available on the EWLI-12V120BH model only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eIntegrated Heating\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eNo — integrated heating is available on the EWLI-12V120BH model only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBMS\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eIntegrated Battery Management System\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCharging Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e0°C to 50°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDischarging Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-20°C to 50°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStorage Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e-20°C to 50°C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eApprox. 330 x 171 x 220 mm \/ 13.0 x 6.7 x 8.7 in\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eApprox. 15 kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBlack\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e96 months\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCharging \u0026amp; Compatibility Notes\u003c\/h3\u003e\n\n\u003cp\u003eThis battery is designed for \u003cstrong\u003edeep cycle applications\u003c\/strong\u003e. For best performance and battery life, use a \u003cstrong\u003eLiFePO4-compatible charger\u003c\/strong\u003e, RV converter, inverter charger, or solar charge controller with the correct lithium charging profile. The recommended charging voltage range is \u003cstrong\u003e14.0V to 14.4V\u003c\/strong\u003e, with a recommended charging current of \u003cstrong\u003e30A\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eAlways confirm compatibility with your RV, marine, solar, trolling motor, inverter, charger, or electrical system before installation. This battery should not be used as an engine starting battery unless the application has been confirmed compatible by the manufacturer or a qualified installer.\u003c\/p\u003e\n\n\u003ch3\u003eBest Fit For\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCustomers replacing compatible Group 31 deep cycle batteries\u003c\/li\u003e\n  \u003cli\u003eRV owners wanting a higher-capacity lithium house battery\u003c\/li\u003e\n  \u003cli\u003eBoat owners needing reliable power for electronics and accessories\u003c\/li\u003e\n  \u003cli\u003eSolar users building a compact 12V energy storage system\u003c\/li\u003e\n  \u003cli\u003eCampers and overlanders needing dependable portable power\u003c\/li\u003e\n  \u003cli\u003eOff-grid users needing long cycle life and strong discharge capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eWhat is the Enerwatt EWLI-12V120 battery used for?\u003c\/h4\u003e\n\u003cp\u003eThe Enerwatt EWLI-12V120 is a 12V 120Ah LiFePO4 deep cycle battery designed for RVs, boats, camper vans, travel trailers, solar systems, off-grid cabins, camping power setups, and auxiliary 12V energy storage. It is ideal for applications that require reliable deep cycle power, high usable capacity, and long battery life.\u003c\/p\u003e\n\n\u003ch4\u003eHow many watt-hours does the EWLI-12V120 battery provide?\u003c\/h4\u003e\n\u003cp\u003eThe EWLI-12V120 provides \u003cstrong\u003e1,536Wh\u003c\/strong\u003e of energy, based on its 12.8V nominal voltage and 120Ah capacity. Actual usable energy may vary depending on load, temperature, system design, and operating conditions.\u003c\/p\u003e\n\n\u003ch4\u003eDoes the Enerwatt EWLI-12V120 battery have Bluetooth?\u003c\/h4\u003e\n\u003cp\u003eNo. The EWLI-12V120 does not include Bluetooth monitoring. Bluetooth is available on the \u003cstrong\u003eEWLI-12V120BH\u003c\/strong\u003e model only.\u003c\/p\u003e\n\n\u003ch4\u003eIs the Enerwatt EWLI-12V120 battery heated?\u003c\/h4\u003e\n\u003cp\u003eNo. This EWLI-12V120 model does not include integrated heating. Integrated heated charging support is available on the \u003cstrong\u003eEWLI-12V120BH\u003c\/strong\u003e model only.\u003c\/p\u003e\n\n\u003ch4\u003eCan this battery replace a lead-acid or AGM Group 31 battery?\u003c\/h4\u003e\n\u003cp\u003eIn many compatible deep cycle applications, yes. The EWLI-12V120 can be used as a lithium upgrade for many Group 31 lead-acid or AGM battery systems. However, the charging system should be compatible with LiFePO4 batteries. A lithium-compatible charger, RV converter, inverter charger, or solar charge controller is recommended for best performance.\u003c\/p\u003e\n\n\u003ch4\u003eCan I use the EWLI-12V120 battery for an RV?\u003c\/h4\u003e\n\u003cp\u003eYes. This 12V 120Ah LiFePO4 battery is a strong option for RV house power, travel trailers, fifth wheels, camper vans, and camping setups. It can support properly sized 12V accessories such as lights, fans, water pumps, refrigerators, control systems, and inverter systems.\u003c\/p\u003e\n\n\u003ch4\u003eCan this battery be used for marine applications?\u003c\/h4\u003e\n\u003cp\u003eYes. The Enerwatt EWLI-12V120 can be used for marine deep cycle applications such as boat electronics, fish finders, lighting, accessory circuits, and compatible 12V trolling motor systems. It should not be used as a starting battery unless the application has been confirmed compatible.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the cycle life of this 12V 120Ah LiFePO4 battery?\u003c\/h4\u003e\n\u003cp\u003eThe expected cycle life is \u003cstrong\u003e4000 cycles at 80% depth of discharge\u003c\/strong\u003e and 0.5C under specified test conditions. This makes it a long-lasting alternative to traditional lead-acid deep cycle batteries.\u003c\/p\u003e\n\n\u003ch4\u003eWhat charger should I use with this battery?\u003c\/h4\u003e\n\u003cp\u003eA \u003cstrong\u003eLiFePO4-compatible charger\u003c\/strong\u003e is recommended. The charging voltage range is \u003cstrong\u003e14.0V to 14.4V\u003c\/strong\u003e, with a recommended charging current of \u003cstrong\u003e30A\u003c\/strong\u003e and a maximum charging current of \u003cstrong\u003e125A\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the maximum discharge current?\u003c\/h4\u003e\n\u003cp\u003eThe EWLI-12V120 supports a maximum constant discharge current of \u003cstrong\u003e150A\u003c\/strong\u003e, making it suitable for properly sized deep cycle power systems that require higher current output.\u003c\/p\u003e","brand":"Enerwatt","offers":[{"title":"Default Title","offer_id":48828163391744,"sku":"EWLI-12V120","price":799.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0451\/3506\/9347\/files\/EWLI-12V120-Lithium-Battery-3.png?v=1781207960","url":"https:\/\/brsbattery.com\/products\/12v-120ah-lithium-group-31-deep-cycle-battery","provider":"BRS Battery ","version":"1.0","type":"link"}