Lithium Polymer (LiPo). 4810 mAh 37 Wh. 7.7 V. Brand compatibility: HP. Black. Number of batteries included: 1 pc(s). Features. Brand compatibility. HP. Product colour. Black. Battery voltage. 7.7 V. Number of battery cells. 4. Battery capacity. 4810 mAh. Battery technology. Lithium Polymer (LiPo). Packaging data. Quantity per pack. 1 pc(s). Number of batteries included. 1 pc(s)