Get longer battery life with a new Dell J8FK9 battery. This J8FK9 battery is compatible with the Dell XPS 16 9640 models. It also replaces the Dell J8FK9 and RWFFJ original battery part numbers. See below for the complete list of compatible models and battery part numbers.
This Dell type J8FK9 battery is rated 11.7 volts and 99 Whr and will normally last 7-9 hours on a full charge. You can get longer battery life by dimming your screen and closing unused programs and applications.
Each Dell J8FK9 battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.
