Dur-Power 12.8V 200Ah Rechargeable Lithium Iron Phosphate (LiFePO4) Battery, which has an energy capacity of approximately 2.56 kWh.Key SpecificationsBrand/Model: Dur-Power 12.8V 200AhBattery Type: Lithium Iron Phosphate (LiFePO4)Nominal Voltage: 12.8VRated Capacity: 200Ah (approx. 2,560Wh / 2.56 kWh)