Battery type: Li-polymer Capacity: 150 mAh Voltage: 3.7 V Energy: 0.56 Wh Number of cells: 1 Weight: 5 g Dimensions (length x width x height): 2.7 x 2 x 0.7 cm Height: 0.7 cm Compatible with the following device models: Syma S107G Syma 107G Syma S108G Syma S109G Syma S102G Syma S111G .