Battery type: Li-Ion - no memory-effect Capacity: 950 mAh Voltage: 3.7 V Energy: 3.52 Wh Number of cells: 1 Weight: 18 g Compatible with the following device models: Siemens Gigaset SL800H Pro Siemens Gigaset SL78 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.