The Power Queen 12.8V 410Ah battery is a reliable and durable solution for stand-alone power systems, solar power systems, campers, electric vehicles, and other devices that require a stable power supply. Equipped with a 250A battery management system (BMS), it ensures safe operation and overload protection. Suitable for: - Home or business backup power systems - Solar power systems - Electric vehicles and boats - Campers and motorhomes - Emergency power systems Specifications:• Cell type: LiFePO4• Nominal voltage: 12.8V• Capacity: 410Ah• Energy: 5240Wh• Internal resistance: ≤40mΩ• Cycle life: ≥4000 cycles• Battery management system (BMS): 150A• Charging method: CC/CV• Charging voltage: 14.4V±0.2V• Recommended charging current: 20A (0.2C)• Maximum charging current: 250A• Maximum discharge current: 250A• Maximum discharge current for 100ms: 500A• Maximum output power: 3200W.• Dimensions: 522*240*218mm• Shell material: ABS (fire-retardant plastic)• Protection class: IP65 (full protection from dust and water jets)• Temperature range: - Charging: 0°C to 50°C - Discharging: -20°C to 60°C - Storage: -10°C to 50°C This Power Queen battery is an excellent choice for those looking for a safe and durable solution for systems requiring high power and long life.