HQRP Battery compatible with Dogtra BP74R AE552438P6H DC-34 AE562438P6H Replacement plus Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 7.4V; Capacity: 500 mAh; Li-Pol; ompatible with Original Battery; 200 Days warranty!