Battery type: Li-polymer Capacity: 750 mAh Voltage: 3.7 V Energy: 2.78 Wh Height: approx. 0.5mm Number of cells: 1 Weight: 12 g Number of pins: 3 Dimensions (L x W x H): 4 x 3.3 x 0.5 cm Short circuit, overcharge and overheating protection Compatible with the following device models: Boifun VB603 Boifun VB601 Boifun E40 Boifun VB610 Boifun VB605 To ensure compatibility, please check to see whether the battery you are currently using is listed below.