Lithium-Ion (Li-Ion). 4950 mAh 56.3 Wh. 11.38 V. Brand compatibility: Microsoft. Black. Number of batteries included: 1 pc(s). BTI replacement 6 cell battery for MICRSOFT SURFACE LAPTOP STUDIO 14.4" (Model 1964), STUDIO Model 1964, STUDIO 1964. Features. Brand compatibility. Microsoft. Product colour. Black. Battery voltage. 11.38 V. Number of battery cells. 6. Battery capacity. 4950 mAh. Battery technology. Lithium-Ion (Li-Ion). Packaging data. Quantity per pack. 1 pc(s). Number of batteries included. 1 pc(s). leaflet. Origin Eco. Origin Promo