Battery type: Li-polymer Capacity: 3000 mAh Voltage: 7.57 V Energy: 22.71 Wh Number of cells: 2 Weight: 105 g Compatible with the following device models: Microsoft Surface Book 2 1793 Microsoft Surface Book 2 1793 15 To ensure compatibility, please check to see whether the battery you are currently using is listed below. Replacement for: Microsoft DYNH01 .