HQRP Battery for Dt-Systems SPT Series SPT-2420, SPT-2422, SPT-2430, SPT-2432, SPT-7300, SPT-7302, SPT-7800, SPT-7802 Remote Controlled Dog Training Collar Receiver + Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 4.8V; Capacity: 330 mAh; Ni-Mh; 100% compatible with Original Battery; 200 Days warranty!