300mAh Ni-MH DC-1 Battery Dogtra 200NCP Gold Transmitters, 202NCP Gold Transmitters Capacity: 300mAh / 1.4Wh Type: Ni-MH Volts: 4.8V Size : 58.24 x 20.59 x 10.63mm Certificated with ISO9001, RoHS & CE;