This Asus B21N1329 battery replaces the original battery found in Asus X553M, X553MA and R515M models. This Asus X553 battery is rated 7.6 volts and 4040 mAh and will normally last 5-10 hours on a full charge. You can get longer battery life by dimming your screen and closing unused programs.

This is an internally located battery and you will need to take the laptop case apart in order to replace the battery. The procedure is easy to do. You will need a small head Phillips screwdriver to access the screws on the bottom of your laptop. The screws holding the case together are located at all 4 corners of the laptop.

Inside the Asus X553 battery are South Korea's best Lithium-ion rechargeable battery cells. This Asus battery is 100% compatible with your Asus X553m laptop. Each battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.