Nominal Capacity 40Ah Energy Density 116wh/kg at 0.1C Float Voltage 3.4V Operating Voltage Charge Voltage 3.6V Discharge Cut-off Voltage 2.0V Max Charge Current 3CA Max Discharge Current Constant Current 4CA(30s) Impulse Current 12CA(5ms) Standard Charge/Discharge Current 0.3CA Cycle Life 80%DOD 2000times 70%DOD 3000times Max Transient Temperature Resistance of Shell 170 degree Long Term Shell Temperature Resistance 130 degree Recommended Temperature 75 degree Operating Temperature Charge 0-55 degree Discharge -25-55 degree Low Temperature Discharge Efficiency 90% Self-discharge Rate/Month 3%(Monthly) Weight 3.1kg±0.1kg Dimension 142*67*H220mm