HQRP 1100mAh Battery for MAGELLAN RoadMate 1200 1210 T0021, F074389508 GPS Navigator + HQRP Coaster HQRP&reg; Rechargeable Battery plus HQRP&reg; Coaster; Battery Voltage: 3.7V; Capacity: 1100 mAh; Li-Ion; 4-Wires; 100% compatible with Original Battery; 1 Year warranty!