This Lenovo battery fits the Lenovo IdeaPad S540 series.

We use the highest quality lithium-ion battery cells and components. Li-ion batteries are not subject to the memory effect common with older battery technology.

This Lenovo IdeaPad 540 Battery replacement is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty.

You can expect about 2 - 4 hours of run time with this IdeaPad S540 battery when new, depending on your energy use.