Asus B31N1822 Li-ion Battery

* Please ensure the product(s) that you are going to buy fits the brand, model and part number of your device.

B31N1822 Battery for Asus Q406D Q406DA 3653mAh/42Wh)

Price :£ 64.99 £ 77.99
(Shipped Within 24 hours!)Free shipping

High quality Asus B31N1822 replacement battery at best price online. We assure 100% compatible with Asus B31N1822, we test the B31N1822 batteries one by one before shipping to make sure that they are all working before they are shipped. Easily replace the battery of any Asus Q406D Q406DA and get up to 23% more capacity versus the original battery. Includes a 1-year warranty,30 days money back guarantee.

Condition Brand New
Brand Asus
Cell Type Li-ion
Capacity 3653mAh/42Wh
Voltage 11.52V
Availability In Stock
- +

High Quality Asus B31N1822 Battery Replacement

High Quality Components

This Asus B31N1822 battery replacement has built-in A+ grade cells and high-quality TI intelligent control chip, which not only performs better, charges faster but lasts longer. In addition, the outer shell of the Asus B31N1822 battery is made according to the original battery shape design scheme, using high temperature and wear-resistant ABS +PC alloy environmentally friendly materials, which can be 100% compatible with your device and fit closely.

100% True Capacity

Do not be deceived by the false capacity advertisements from bad merchants, of which battery capacity will often drop off significantly after using a few months. Made with the highest quality "A" grade cells, our Asus B31N1822 Laptop Battery has passed various strict quality tests to ensure that it meets OEM specifications, which can provide more than 600 charging cycles to maintain the same capacity for a long time.

Safety Is Vital!

Using a poor battery with unstable performance may do harm to the notebook and your safety. Our Asus B31N1822 replacement battery has passed CE, UL, ROHS, and other international authority certifications, which provides a variety of protection functions, effectively preventing common risks such as short circuits, overheating, and overvoltage. In order to protect your device and your safety, please rest assured to purchase our high-quality batteries!

Compatible partnumbers:

This product is compatible with:

Asus Q406D Q406DA
B31N1822 B31N1822


Q: How to check this battery is compatible with my laptop?

A: Please find out your old battery's part number or the exact model name of your laptop at first (like 'Asus B31N1822'), then to match our product compatibility chart. Second please compare your old battery to our product images ensure their shape is same. Finally check the voltage(Rating) is same to your old battery's. More details please click How to find one correct battery for my laptop?

Q: Does your replacement Asus B31N1822 battery compatibles with my originalAsus B31N1822 battery?

A: 100% OEM compatible, guaranteed to meet the specifications of your original Asus B31N1822 battery (ensue same size & high quality). And all our batteries for Asus B31N1822 laptop have obtained international certification( CE, UL, ROHS, ISO9001/9002 ).

Q: How to charge a new battery for Asus B31N1822 for the first time use?

A: New Asus B31N1822 battery pack is normally shipped in its partially charged condition. Please cycle your new Asus B31N1822 battery pack by fully charge and discharge it for 3-5 times to allow it to reach its maximum rated capacity before use. (Note: it is perfectly normal for a battery to become warm to the touch during charging and discharging).

New batteries are hard for your device to charge; they have never been fully charged and are therefore "unformed". Sometimes your device's charger will stop charging a new battery before it is fully charged. If this happens, simply remove the battery from your device and then re-insert it. The charge cycle should begin again. This may happen several times during your first battery charge. Don't worry; it's perfectly normal.

Q: How to Remove Replace Install and Upgrade your Asus B31N1822 Laptop Battery?

A: 1. Turn your Asus B31N1822 laptop over.

2. Find the Laptop Battery release button lock for your Asus B31N1822 laptop.

3. Now that your Asus B31N1822 Laptop Battery is unlocked, find the battery release button down.

4. Holding the laptop battery release button, gently pull your battery away from the laptop.

5. Now that your Asus B31N1822 battery is removed, grab your replacement Asus B31N1822 battery for installation.

6. Insert the battery into the slot. Push the Asus B31N1822 battery towards the laptop and secure it in place.

This replacement Asus B31N1822 battery pack is specially designed with multiple-protection circuit for maximum safety. The housing of the Asus B31N1822 battery pack is made of non flammable and very durable plastic, which is fire retarded and avoids damage when dropped from low heights.

All our high quality replacement batteries for Asus B31N1822 have been tested and proven to match and/or exceed original Asus battery performance and are 100% compatible with Original Manufacturer Specifications.This battery for Asus B31N1822 comes with 1-Year limited warranty.

Thank you for purchasing this high quality replacement Asus B31N1822 Laptop Battery at We have a strict testing process to ensure that your ordered products (like this battery for Asus B31N1822) are functionally correct before they are packed and sent to you. And before placing an order please make sure that your old original Asus B31N1822 battery's part number is listed at below and the shape is same to our batteries' images (please view the larger images for details).

Item Code ASU20JU927
Condition Replacement, Brand New
Type Li-ion
Brand Asus Compatible Laptop Battery
Capacity 3653mAh/42Wh
Voltage 11.52V
Warranty 1 Year Warranty, 30-day money back guarantee!
Protections Short circuit protection, over voltage protection, over current protection
Certification RoHS, CE, FCC
Useful Life 300-500 Recharge Cycles

Shipped Within 24 hours

We promise to ship within 24 hours once you place your order successfully.

30-Days Money Back Guarantee

We promise that if you are not satisfied with the battery for Asus B31N1822 which you ordered, you can return the battery and we will refund the amount you spent on the purchase within 30 days.

One-Year Warranty

We are absolutely confident of our batteries and offer one year warranty on the Asus B31N1822 battery replacement.

100% Security Payment

For the security of your account, our payment methods are safe and trustworthy. We protect every client's privacy, so please buy with confidence!

To reduce risk of fire or bums, do not disassemble, crush, puncture short external contacts, or dispose of it in fire or water

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