Lithium-Ion (Li-Ion). 4000 mAh 30 Wh. 7.5 V. Brand compatibility: Lenovo. Black. Number of batteries included: 1 pc(s). Origin Storage L16M2PB1-BTI industrial rechargeable battery. Features. Battery technology. Lithium-Ion (Li-Ion). Battery capacity. 4000 mAh. Number of battery cells. 2. Battery voltage. 7.5 V. Product colour. Black. Brand compatibility. Lenovo. Packaging data. Number of batteries included. 1 pc(s). Quantity per pack. 1 pc(s). leaflet. Origin Promo. Origin Eco