This is a brand new 6 cell battery for the Dell Latitude E6540 models. This Dell Latitude E6540 battery is rated 11.1 volts and 65 Wh and will typically last 4-5 hours on a full charge. You can get even longer battery life by dimming the screen and closing unused programs.

This Latitude E6440 battery uses the highest quality lithium-ion cells and components and is 100% compatible with your Dell Latitude laptop. Each Dell E6540 battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.