300mAh Ni-MH BP12RT Battery DOGTRA Receiver 7100, DOGTRA Receiver 7102, DOGTRA Transmitter 7100H, DOGTRA Transmitter 7102H High Quality, high capacity, light weight rechargeable battery No memory effect. Can be charged or discharged as needed without loss of capacity Overcharge protection, with built-in battery life microchip Compatible Models: DOGTRA Receiver 7100, DOGTRA Receiver 7102, DOGTRA Transmitter 7100H, DOGTRA Transmitter 7102H Compatible Part #s: BP12RT, GPRHC043M016