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 SL400H Siemens Gigaset SL350H Siemens Gigaset SL350 Siemens Gigaset SL400A Siemens Gigaset SL400 To ensure compatibility, please check to see whether the battery you are currently using is listed below.