Brand new Asus C31N1821 battery replacement. Get your Asus ZenBook S13 UX392FA UX392FN UX392FN-XS71 battery life back to 100%. This battery matches many other models. High Quality Replacement Asus C31N1821 Battery. View details and compatible models below.
High Quality Components
This Asus C31N1821 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 C31N1821 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 C31N1821 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 C31N1821 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!
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 C31N1821'), 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 C31N1821 battery compatibles with my originalAsus C31N1821 battery?
A: 100% OEM compatible, guaranteed to meet the specifications of your original Asus C31N1821 battery (ensue same size & high quality). And all our batteries for Asus C31N1821 laptop have obtained international certification( CE, UL, ROHS, ISO9001/9002 ).
Q: How to charge a new battery for Asus C31N1821 for the first time use?
A: New Asus C31N1821 battery pack is normally shipped in its partially charged condition. Please cycle your new Asus C31N1821 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 tell if your C31N1821 battery is bad?
A: 1. It loses charge faster than it used to.
2. It won't charge all the way.
3. It immediately loses charge after charging.
4. It overheats, swells, leaks, has corrosion or water damage.
Currently, all of our shipments are through Priority Mail (EMS USPS),if you are dealer,you can selected others .We can not offer Overnight (UPS Red) and 2nd Day Delivery (UPS Blue) .
Free Shipping on All Products
All orders placed for Standard Shipping on all stock items will be shipped within 1 - 2 business days.
Estimated Delivery Time:7 - 15 Business Days
It is very easy for you to check the status of your order and locate the package during transit, as an email with a tracking number will be sent to your email address after your order has been shipped out. Tracking number will be emailed to buyer once your ordered item is shipped out.
Shipping rates: Our rates include the expenses of shipping, handling and the high quality packaging.
Attention: Priority mail will be used for all PO Box shipping addresses ,But All APO's and military addresses do not apply here. Please use standard shipping for these. Thank you.
30-Days Money Back Guarantee
We promise that if you are not satisfied with the battery for Asus C31N1821 which you ordered, you can return the battery and we will refund the amount you spent on the purchase within 30 days.
We are absolutely confident of our batteries and offer one year warranty on the Asus C31N1821 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