NEW For Lenovo ThinkPad Battery T440P T540P W540 W541 L440 L540 0C52863 57+/57++
45N1162, 45N1163, 0C52864, 0C52863. For Lenovo ThinkPadT440P T540P. For Lenovo ThinkPad W540 W541 L440 L540 Series. Remove the old battery, carefully install the new battery on the battery case, and connect the wiring of the new battery.