Battery type: Li-Ion - no memory-effect Capacity: 800 mAh Voltage: 3.7 V Energy: 2.96 Wh Number of cells: 1 Weight: 19 g Compatible with the following device models: Mitel 612d Mitel 622d Mitel 632d Mitel 620d Mitel 622dt Mitel 610d Mitel 612dt Mitel 630d Mitel 600d To ensure compatibility, please check to see whether the battery you are currently using is listed below.