... 2.Long life 3.CE,UL,RoHs,ISO high temperature Ni-CD NI-MH rechargeable battery charging, discharging, service life, self-discharge ... and temperature propertyCharge propertyThe voltage of Ni-Cd and Ni-MH battery goes up during charging, and at charging ... range for discharge is -40°C~+50°C. high temperature Ni-CD NI-MH rechargeable battery