This Lenovo 42T4791 battery is compatible with many Lenovo laptops including the ThinkPad Edge E40, E50, L410, L510, SL410, SL510, T410, T410i, T510,T510i, T520 and W510 laptop models.
We use the highest quality lithium-ion cells on the market that charge faster and last longer. Each 42T4791 battery is backed by a 2 year warranty 30 day money back guarantee.
You can expect about 3 - 6 hours of run time with this Lenovo 42T4791 battery when new, depending on your energy use. If you would like even longer hours of run time please check out our
extended run LENOVO 42T4791 battery.