Battery type: Li-Ion - no memory-effect Capacity: 1100 mAh Voltage: 3.7 V Energy: 4.07 Wh Number of cells: 1 Dimensions (L x W x H): 5.4 x 3.5 x 0.7 cm Weight: 24 g Compatible with the following device models: TomTom Go 4FA60 TomTom Go 610 TomTom Go Essential TomTom G0 620 World TomTom Go 600 TomTom Go 6100 TomTom Go 620 (2016) To ensure compatibility, please check to see whether the battery you are currently using is listed below.