Type Lithium ion battery Nominal voltage 48V Nominal Capacity 30Ah Dimension customized Weight Approx: 7kg Max.charge current 1.0C Max.discharge current 30-50A Charge current Standard Charging: 0.5C Rapid charge: 1.0C Standard Charging method 0.5C CC(constant current)charge, then CV(constant voltage)charge till charge current decline to =0.05C Charging time Standard Charging: 2.75 hours(Ref.) Rapid charge: 2 hours(Ref.) Cycle life >500 times Operating temperature Charging: 0 °C ~+60 °C Discharging: 0 °C ~+60 °C Storage temperature -20°C~+60 °C