HQRP Battery for Dogtra BP37T fits iQ Portable Remote Controlled Dog Training Transmitter, TCL PR-562440N plus Coaster HQRP&reg; Rechargeable Transmitter Battery plus HQRP&reg; Coaster; Battery Voltage: 3.7V; Capacity: 400 mAh; Li-Pol; 100% compatible with Original Battery; 200 Days warranty!