Lithium-Ion (Li-Ion). 7800 mAh 84 Wh. 10.8 V. Brand compatibility: HP. Black. Number of batteries included: 1 pc(s). HP-HDX9000:. - Volts: 11.1V. - Capacity: 7800mAh. - Cells: 9. - Chemistry: LiIon. - Color: Black. Features. Brand compatibility. HP. Product colour. Black. Battery voltage. 10.8 V. Number of battery cells. 9. Battery capacity. 7800 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Number of batteries included. 1 pc(s)