1, 12v 60ah li-ion battery Specifications: Item Basic parameters Model NHLT1260 Material of Anode/Cathode 12v 60ah li-ion battery for Solar lights Size 75(T) x 130(W) x295(H)(mm) Weight 5kg Nominal capacity 60Ah Nominal voltage 12V Internal resistance: �200mΩ Discharge cut-off voltage 9.0V Charge voltage 12.6V Standard charging 0.2C constant current charge to 12.6V, then constant voltage 12.6V charge till charge current decline to�0.05C Standard discharging 0.2C CC discharge to 9.0V. Max.continual charge current 0.5C Continual discharge current 1C Max. Charge/discharge pulse current 3C Operating temperature Charging: 10~45 Discharging:-20~55 Storage temperature Less than 1 year: 0~25 Less than 3 months: -10~45 High temperature performance 0.5C capacity higher than 98% of nominal capacity at 55 Low temperature performance 0.2C capacity higher than 70% of nominal capacity at -20