This brand new Lenovo ThinkPad T440P T540P L540 L540P W540 battery features lithium-ion cells. Li-ion battery technology provides longer run times with less weight.

We use the highest quality lithium-ion battery cells and components that charge faster, last longer and weigh less than cheaper, lower quality batteries. Lower quality batteries can wear out in just a few months. Our batteries can last up to 5 years.

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

You can expect about 2 - 3 hours of run time with this computer battery when new, depending on your energy use. If you are looking for even longer battery run times, check out our extended run battery for your HP laptop (our Long Life Lenovo W540 battery.