Battery type: Li-Ion - no memory-effect Capacity: 1050 mAh Voltage: 3.7 V Energy: 3.89 Wh Number of cells: 1 Weight: 22 g Compatible with the following device models: Siemens Gigaset SL910 Siemens Gigaset SL910H Siemens Gigaset SL910A To ensure compatibility, please check to see whether the battery you are currently using is listed below. Replacement for: Siemens V30145-K1310K-X447 Siemens V30145-K1310K-X447-0-HY .