VINTRONS Rechargeable Battery 750mAh For Magellan T300-3, RoadMate 3065, RoadMate 3055, RoadMate 3065T-LM Capacity: 750mAh / 2.8Wh Type: Li-ion Volts: 3.7V Size : 50.08 x 35.75 x 5.67mm