Lithium-Ion (Li-Ion). 4210 mAh 64 Wh. 15.2 V. Black. Number of batteries included: 1 pc(s). 4C Battery Latitude 5421. Features. Product colour. Black. Battery voltage. 15.2 V. Number of battery cells. 4. Battery capacity. 4210 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Number of batteries included. 1 pc(s). leaflet. Origin Promo. Origin Eco