Toshiba Satellite M55s139 Notebook / Laptop Battery 2200mAh (Replacement) Build with high quality components that fits the TOSHIBA SATELLITE M55S139 laptop Volts: 14.8V, Cells: 4, Color: Black, Chemistry: LiIon, Capacity: 2200mAh, 1 year manufacturer warranty. 100% OEM compatible and made with high quality battery cells. In house engineers to ensure fast response for all technical questions regarding the TOSHIBA SATELLITE M55S139 laptop battery. Ship direct from manufacturer