About This

• The 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.
• 200A 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 (<3% monthly), this ensures safety and extends battery life in harsh conditions.
• Expandable 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.
• 12V 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!
• Wide 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) & DOD (Depth of Discharge)​​, delivering significantly extended lifespan compared to traditional lead-acid batteries.

Overview

• Brand : dumfume
• Voltage : 12.8 Volts
• Item Weight : 38.8 Kilograms
• Manufacturer : dumfume