Warranty 1 Year Voltage 11.55V Battery Type Internal Cells 3 Cell Cell Type Li-polymer Battery Capacity 4650mAh Watt-Hour 53.7075Wh Compatible with Thinkpad X1 Carbon Gen 5 2017 ThinkPad X1 Carbon 2017 ThinkPad X1 Carbon 2018 ThinkPad X1 Carbon 2018 G6 1HK ThinkPad X1 Carbon 2018 G6 KHK ThinkPad X1 Carbon 2018 G6 LHK ThinkPad X1 Carbon 2018(20KGA0BRCD) ThinkPad X1 Carbon 2018(20KH0009CD) ThinkPad X1 Carbon 2018(20KH000BCD) ThinkPad X1 Carbon 2018(20KH000HCD) ThinkPad X1 Carbon 2018(20KH000JCD) ThinkPad X1 Carbon 2018(20KH0025CD) ThinkPad X1 Carbon 2018(20KH0027CD) ThinkPad X1 Carbon 2018(20KHA000CD) ThinkPad X1 Carbon 2018(20KHA001CD) ThinkPad X1 Carbon 2018(20KHA003CD) ThinkPad X1 Carbon 2018(20KHA004CD) ThinkPad X1 Carbon 2018(20KHA005CD) ThinkPad X1 Carbon 2018(20KHA00GCD) ThinkPad X1 Carbon 2018(20KHA02FCD) ThinkPad X1 Carbon 2018(20KHA02GCD) ThinkPad X1 Carbon 2018(20KHA02JCD) ThinkPad X1 Carbon 2018-20KGS03900 ThinkPad X1 Carbon G6 ThinkPad X1 Carbon G6 2018 ThinkPad X1 Carbon G6-20KG0025UK ThinkPad X1 Carbon G6-20KH006MGE X1 Carbon 2017 X1 Carbon 2018 Thinkpad X1 Carbon 5th Thinkpad X1 Carbon 6th TP00086A TP00086B