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 SL610H Pro Siemens Gigaset SL785 Siemens Gigaset SL780 Siemens Gigaset SL788 Siemens Gigaset SL78H To ensure compatibility, please check to see whether the battery you are currently using is listed below.