This is a new Asus C21PQ91 battery pack for the Asus eee Book X205, X205TA and F205 laptop models. This Asus C21PQ91 battery features the highest quality lithium-ion cells from Samsung and components from Texas Instruments that charge faster and last longer.

This Asus C21PQ91 battery is rated 7.6 volts and 5000 mAh and will normally last 5 hours on a full charge. You can get longer battery life by dimming your screen and closing unused programs and applications.

This Asus C21PQ91 battery is 100% compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty.

You can expect about 3-5 hours of run time with this Asus C21PQ91 battery when new, depending on your energy use.