Warranty 1 Year Voltage 10.8V Battery Type External Cells 6 Cell Cell Type Li-ion 18650 cell Battery Capacity 4000mAh Watt-Hour 43Wh Compatible with MSI: MSI A6400 Series,MSI CR640 Series,MSI CR640DX Series,MSI CR640MX Series,MSI CR640X Series, MSI CX640 Series,MSI CX640DX Series,MSI CX640MX Series,MSI CX640X Series MEDION: MEDION Akoya E6201 Series,MEDION Akoya E6221 Series,MEDION Akoya E6222 Series, MEDION Akoya E6227 Series,MEDION Akoya E6228 Series,MEDION Akoya E6234 Series, MEDION Akoya E7201 Series,MEDION Akoya E7219 Series,MEDION Akoya E7220 Series, MEDION Akoya E7221 Series,MEDION Akoya E7222 Series,MEDION Akoya P6631 Series, MEDION Akoya P6633 Series,MEDION Akoya P6634 Series,MEDION Akoya P6635 Series, MEDION Akoya P6637 Series,MEDION Akoya P6638 Series,MEDION Akoya P6640 Series, MEDION Akoya P6815 Series,MEDION Akoya P7621 Series,MEDION Akoya P7815 Series, MEDION Akoya P7816 Series,MEDION Akoya P7817 Series,MEDION Akoya P7818 Series, MEDION Erazer X6815 Series,MEDION Erazer X6816 Series