43.2Wh 6 Cell 10.8V Battery – 02K6760

This Li-Ion battery provides additional “unplugged” time for your ThinkPad X20, X21, X22, X23, X24 equal to that of your standard system battery. It replaces the system battery and is rechargeable. The ThinkPad X20, X21, X22, X23, X24 Li-Ion Battery is also compatible with A and T Series external battery chargers.