Battery type: Li-Ion - no memory-effect Capacity: 1000 mAh Voltage: 3.6 V Energy: 3.6 Wh Number of cells: 1 Dimensions (L x W x H): 2.6 x 1.5 x 1.5 cm Weight: 12 g Compatible with the following device models: Omron Sigma II/V Servo Driver Omron Sigma II Omron Sigma 2 absolute encoder To ensure compatibility, please check to see whether the non-rechargeable battery you are currently using is listed below.