Lithium Polymer (LiPo). 4000 mAh 30 Wh. 7.6 V. Brand compatibility: HP. Black. Number of batteries included: 1 pc(s). Features. Brand compatibility. HP. Product colour. Black. Battery voltage. 7.6 V. Number of battery cells. 2. Battery capacity. 4000 mAh. Battery technology. Lithium Polymer (LiPo). Packaging data. Number of batteries included. 1 pc(s). leaflet. Origin Promo. Origin Eco