... energy density Safety and Environmental Friendly ·Ni-MH rechargeable battery ·Size: AA - cylindrical type ·Nominal voltage: 1.2V per cell ·Size AA: capacity 1000 ... of rechargeable batteries are available ·SC,C,D,AAA, A ,2/3SC, 2/3C, 1/2D, F Main features:♦ Charging efficiency is ... to 4 years;♦ High energy density:♦ Safety and Environmental Friendly Ni-MH AA battery pack 1800mAh 2.4V