Battery type: Li-Ion - no memory-effect Capacity: 700 mAh Voltage: 3.7 V Energy: 2.59 Wh Number of cells: 1 Weight: 18 g Compatible with the following device models: Siemens Gigaset SL610H Pro Siemens Gigaset SL750H Pro Siemens Gigaset SL750H Siemens Gigaset SL750 To ensure compatibility, please check to see whether the battery you are currently using is listed below.