Bettery packs with 5 pcs AA1800 high capacity rechgeable Ni-MH battery. Size: AA Nominal capacity(mAh): 1800 Dimensions(Height): 50.5mm Dimensions(Diameter): 14.5mm Standard charge(Current): 180.0mA Standard charge(Time): 16.0h Rapid charge(Current): 900mA Rapid charge(Time): 2.4h Approx Weight(g): 140