Warranty: 12 months; Cells manufacturer: Green Cell; Voltage: 7.4V / 7.6V; Number of cells: 4; Cells technology: Li-Polymer; Colour: Black; Overheat protection: Yes; Overdischarge protection: Yes; Overcharge protection: Yes; Product code: DE103; Manufacturer: Green Cell; Surge protection: Yes; Capacity: 5400mAh; Work time: from 2 up to 8h; Series: Polymer; Dell XPS 13;