Lithium-Ion (Li-Ion). 2800 mAh 30 Wh. 10.8 V. Brand compatibility: HP. Black. Number of batteries included: 1 pc(s). Features. Brand compatibility. HP. Product colour. Black. Battery voltage. 10.8 V. Number of battery cells. 3. Battery capacity. 2800 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Number of batteries included. 1 pc(s)