The MH-Ni batteries have features of superior sealing,operation in all directions without leakage,higher capacity density and energy density,stable voltage,quick charge and discharge,
without "memory effect"and long service life etc. MH-Ni battery can be exchanged with Cd-Ni battery and dry battery,no environment pollution. It is used as DC power sources for communication,lighting,photography,camcorder,police equipment,emergency lights,electronic instruments and apparatus,minicomputers and household electric appliances etc.