VINTRONS 830mAh Battery for Siemens Gigaset SL78H, SL400, SL400A, SL780, SL785, SL788 Capacity: 830mAh / 3.07Wh Type: Li-ion Volts: 3.7V Size : 52.95 x 35.10 x 4.50mm Certificated with ISO9001, RoHS & CE;