Lenovo Battery Internal 4 Cell 52.5Wh LiIon LG

Lenovo 5B11M90034 is an internal lithium-ion battery for select Lenovo laptops. Its part number identifies this replacement for a compatible system.

With four cells and 52.5 Wh of energy capacity, it is designed to store power inside the laptop and support use away from an outlet.

It is intended to restore battery power when the installed battery in a supported Lenovo laptop needs replacement.