Genuine Lenovo ThinkPad Edge E420S S420 3300mAh 14.8V 49Wh Battery 42T4979
Battery Type : Li-Ion
Battery Voltage : 14.8V
Battery Capacity : 3.3Ah 49Wh
Compatible Models :
Lenovo Thinkpad E420S Type 4401, Thinkpad S220, S420 Laptop Notebook Computers (Not For E220s)