This is a brand new Dell 81PF3 type battery for the Dell Inspiron 17 7000 series. This Dell 81PF3 battery replacement is compatible with the Dell Inspiron 17 7000 series, including the 17-7779 and 17-7778 models. It also replaces the Dell 81PF3 and 33YDH original battery part numbers.

This 81PF3 battery is rated 56 Whr and 3500 mAh and will normally last 3.5 hours on a full charge. You can get even longer battery life by dimming the screen and closing unused programs and dimming your screen brightness.

This Dell 81PF3 battery is tested and inspected before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 3-4 hours of run time with this Dell 81PF3 battery when new, depending on your energy use.