Model QH-36130162-50AH Casing material for single cell Aluminum shell Nominal Voltage 3.2V Capacity 50AH Internal Resistance 0.8m Cut-off Voltage Charging: 3.65V Discharging: 2.5V Charging Current 10A (Standard Charging) Max Charge Current 50A Const. Discharge Current 50A Max Discharge Current 100A Dimension D36*W130*H162 MM Cell Weight 1.31 KG Working Temperature Charging: 0- 45 Discharging: -20- 60 Storage Temperature â?¤1month: -20 45 6month: -20 35 During transportation: 20 DOD (Depth Of Discharge) 80% Life Cycle (@0.2C) 5000 times Accessories Copper bars/ M6 Bolts/ insulation sheets Warranty 3 Years