Find the right Laptop Battery for ASUS R420S/R420SA to solve your power issues. Our ASUS C21N1721 battery are manufactured to precisely fit just as your original battery. Shopping in uk-online.co.uk is safe and secure! 100% Guarantee Quality and Fully Test!

Brand New ASUS C21N1721 replacement battery for ASUS Laptop PC 5000mAh/38Wh 7.6V

SPECIFICATIONS:

Battery Compatibility Name: ASUS notebook battery
Battery Application: Laptop PC
Chemical Materials: Li-Po
Rated Capacity: 5000mAh/38Wh
Standard Voltage: 7.6V
Part Numbers:
C21N1721
Compatible Models:
For ASUS R420S/R420SA

Other online shop for ASUS C21N1721

JP: ASUS C21N1721 ノートブックバッテリー
FR: ASUS C21N1721 Batterie Portable
ES: ASUS C21N1721 Batería del portátil
IT: ASUS C21N1721 Batteria per notebook
PL: ASUS C21N1721 Bateria Do Laptopów
US: ASUS C21N1721 Notebook battery

There are several steps you can take to help you get maximum performance from your ASUS battery:

1. If you are not using the internet turn off your wifi connection and lower the intensity of your backlight (hold down function and move the arrows up or down to change intensity).

2. Let the power of the batteries (15%) drain to 0% When you use your brand new Battery first time. And then full charge it (usually chrage it full 12 hours) and let it drain to 0% again. Do this for 2~3 cycles.

3. Don't leave your computer plugged in constantly when it is not in use.

4. Keep your notebook in a well ventilated place and keep it cool. Your battery works faster when it is hot because it is creating more energy and is burning out faster.

5.Unplug any external devices that you don't need such as using a usb or bluetooth mouse .

6. If you are not using the device, do not put your laptop battery in the device for an extended period of time.

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ASUS C21N1721 Excellent quality Battery Replacement