Get longer battery life and improved performance with a brand new Lenovo 45N1742 replacement battery.

This battery uses the highest quality lithium-ion battery cells and components that charge faster, last longer and weigh less than cheaper, lower quality and lower rated batteries. Batteries with low mAh or Wh ratings can wear out quickly. Our batteries can last up to 5 years!

This Lenovo 45N1742 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 5 - 6 hours of battery life with this Lenovo 45N1742 battery when new, depending on your energy use.