HQRP Battery compatible with Dogtra 1200 Series, 1202NCP, 1200NC, 1202NC, D500, D500B, D500T Remote Controlled Dog Training Collar Transmitter plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 7.2V; Capacity: 300 mAh; Ni-Mh; 100% compatible with Original Battery; 200 Days warranty!