Get longer battery life and revive your laptop with a new Genuine Lenovo ThinkPad Edge e420s battery.

We use the highest quality lithium-ion battery cells and components that charge faster and last longer than cheaper, lower quality batteries. Cheaper batteries can wear out in as little as 6 months. Our batteries last 3-5 years on average.

Li-ion battery technology provides longer run times with less weight. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This laptop battery replacement is 100% compatible with the original battery specifications and is individually tested and backed by a 1 Year warranty.

You can expect about 5 hours to 5-1/2 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 Lenovo laptop.