Lenovo V100 series 6 cell Li-Ion battery. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 5200 mAh, Battery voltage: 10.8 V. Weight: 644 g. Operating temperature range (T-T): 5 - 35 °C, Operating relative humidity range: 8 - 95 %. Dimensions (WxDxH): 210 x 58.5 x 28 mm