Lenovo ThinkPad W520 Battery
This is a brand new Lenovo ThinkPad W520 battery to replace your current aging battery.
Get your full battery back up time back. We offer replacement batteries for you at a bargain price.
This Lenovo ThinkPad W520 battery is rigorously tested and safety to exceed original equipment manufacturer specifications.
There is no battery "memory effect" with this rechargeable battery.