{"product_id":"b0fk5732fp","title":"12V 400Ah LiFePO4 Battery 5120Wh Rechargeable Lithium Iron Phosphate Battery Built-in 200A BMS 15000+ Cycles for RV Solar Off-Grid Applications and Home Energy Storage","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eThe lithium iron phosphate (LiFePO4) battery adopts Grade A cells: The 12V 400Ah lithium iron phosphate (LiFePO4) battery boasts exceptional quality, enabling 4,000 to 15,000 charge-discharge cycles (with 10 years lifespan), far surpassing the 300–500 cycles (and only 3-year lifespan) of lead-acid batteries. Our 12V 400Ah lithium battery weighs just 86.2 pounds, which is only 1\/3 the weight of an equivalent-capacity lead-acid battery.\u003c\/li\u003e\n\u003cli\u003e200A BMS Comprehensive Protection：The 12V 400Ah LiFePO4 battery Built-in 200A BMS safeguards against overcharge, over-discharge, overcurrent, and short circuits. Advanced temperature control automatically cuts off charging\/discharging in extreme heat\/cold. Combined with low self-discharge (\u0026lt;3% monthly), this ensures safety and extends battery life in harsh conditions.\u003c\/li\u003e\n\u003cli\u003eExpandable Energy System：Our 400ah lifepo4 battery Can Connect 4 units via 4S4P configuration for 51.2V 1600Ah (81.92 kWh) capacity, supporting 48V solar inverters and whole-home backup. Low self-discharge ensures readiness for seasonal use.Battery performance requires temperatures of 5°C or higher. Please verify suitability before purchase. Return shipping for low-temperature charging issues is not covered.\u003c\/li\u003e\n\u003cli\u003e12V 400Ah Lithium iron phosphate battery dimension is: 20.87×10.43×8.66inch(with handle), weighs 82.67lbs. Note：Under Various Temp\/Humidity Measurement Methods And Instruments, Voltage And Current May Deviate By 1%~5%. Charge\/Discharge Battery Once Every 6 Months To Prevent Damage From Disuse.Please Feel Free To Contact Us If You Encounter Any Problems During Use!\u003c\/li\u003e\n\u003cli\u003eWide Application: Our 12V 400Ah LiFePO4 battery is ideal for RVs, camping, solar home systems, Outdoor Lighting, and off-grid applications. Additionally, the battery casing features IP65-rated waterproof protection, and the built-in side handles allow for easy portability—no worries about indoor or outdoor installation. This battery supports ​​100% SOC (State of Charge) \u0026amp; DOD (Depth of Discharge)​​, delivering significantly extended lifespan compared to traditional lead-acid batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eOverview\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eBrand : dumfume\u003c\/li\u003e\n\u003cli\u003eVoltage : 12.8 Volts\u003c\/li\u003e\n\u003cli\u003eItem Weight : 38.8 Kilograms\u003c\/li\u003e\n\u003cli\u003eManufacturer : dumfume\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Dumfume","offers":[{"title":"Default Title","offer_id":52188032762165,"sku":"B0FK5732FP","price":768.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0976\/4500\/3061\/files\/71ZVQGryQEL._AC_SX679.jpg?v=1768308814","url":"https:\/\/survive-smarts.com\/products\/b0fk5732fp","provider":"SurviveSmart","version":"1.0","type":"link"}