Lithium-Ion (Li-Ion). 8800 mAh 99 Wh. 11.4 V. Brand compatibility: Lenovo. Black. Number of batteries included: 1 pc(s). Replacement 6-cell Notebook Battery for LENOVO THINKPAD P72 20MB P72 20MC P73 20QR P73 20QS. Features. Brand compatibility. Lenovo. Product colour. Black. Battery voltage. 11.4 V. Number of battery cells. 6. Battery capacity. 8800 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Quantity per pack. 1 pc(s). Number of batteries included. 1 pc(s). leaflet. Origin Promo. Origin Eco