Get longer battery life and improved laptop performance with a Dell Studio XPS 1640 battery.

This battery is compatible with the Dell XPS 16 1640, 1640n, 1645, 1645n, 1647 and 1647n laptop models. A full list of compatible laptop battery part numbers can be found below.

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 XPS 1640 battery is typically superior to the original battery and is 100% compatible with your Dell Studio XPS laptop. Each battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 2 - 3 hours of run time with this XPS 1640 battery when new. You can get even longer battery life by dimming your screen and closing unused programs.

This battery replaces the Dell Studio XPS 16, 1640, 1640n, 1645, 1645n, 1647, 1647n series laptops.