Battery type: Li-Ion - no memory-effect Capacity: 1100 mAh Voltage: 3.7 V Energy: 4.1 Wh Number of cells: 1 Dimensions (L x W x H): 5.5 x 3.5 x 0.6 cm Weight: 22 g Compatible with the following device models: TomTom Go 740TM TomTom Go 750 LIVE TomTom Go 740 LIVE TomTom Go 750 TomTom Go 740 To ensure compatibility, please check to see whether the battery you are currently using is listed below.