This Lenovo W540 battery is also compatible with the ThinkPad T440P T540P L540 L540P W540 laptops. Additional compatible laptops and battery part numbers are listed below.

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 5 months. Our batteries can last up to 5 years.

This ThinkPad W540 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 - 3 hours of run time with this ThinkPad W540 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.