This is a brand new 6 cell battery for the Dell Latitude E6440 and E6540 models. This Dell Latitude E6440 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.

The superior South Korean cells inside this battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity.

This Latitude E6440 battery is typically superior to the original battery and is 100% compatible with your Dell Latitude laptop computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.