BrandLenovo Number Of Lithium Metal Cells6Lithium Battery Weight905 GramsLithium Battery Energy Content72 Watt HoursBatteries1 Lithium ion batteries required.includedItem Width44 MillimetersItem Height11.4 CentimetersLithium Battery Voltage10.8 VoltsItem Model NumberThinkPad T440SItem Weight386 gNumber Of Lithium Ion Cells6Voltage10.8 VoltsProduct Dimensions30.5 x 4.4 x 11.4 cm