Store followers benefits：

 1.  After following our store, you will get discounted prices only for fans, or specific coupons and coins.
 2.  Click the "" button on the product to collect the product and add it to the shopping cart, and you will get the privilege of priority expedited shipping.

Free Return Pllicy：

When you buy our products, when the "Free Return" logo appears on the page, it means that this product has joined the worry-free return program.

Service Scope：

Not all countries have Free Return service. At present, supported countries include the mainland territories of the United States, Canada, Australia, United Kingdom, France, Spain, Germany, Russia, South Korea, Saudi Arabia, UAE, Italy, Netherlands, Poland,Portugal,Belgium,Czech,Switzerland,Japan,Ukraine,Mexico,Chile, Brazil and Israel.

How to check your laptop model：

• 1.  Press "Windows" +R button

• 2.  Type "msinfo32" and click ok

• 3.  Find  "System model" in pop up window

Fit Laptop Machine Models (please use "ctrl+f" to search for your laptop model):
If you still can not make sure the battery, please contact us.

Replace Part Number:

B31N1912

C31N1912

0B200-03680200

0B200-03680000

Compatible Laptop Model:

For Asus VivoBook 14 E410MA Series

For Asus VivoBook 14 L410MA Series

For Asus VivoBook E410KA-EK139TS Series.

For Asus VivoBook E510KA-EJ033TS Series.

For Asus VivoBook E510MA-EJ015TS Series.

For Asus VivoBook F414MA Series.

For Asus VivoBook L510MA Series.

For Asus VivoBook R522MA Series.

For Asus VivoBook E510M Series.

For Asus VivoBook E510MA Series.

Shipping Instructions：

1.Usually, we will send out the goods within 1-2 working days after you pay, except holidays . (Because the battery needs to be tested before it can be shippe)
2.We only ship to confirmed order addresses. Address, phone number, postal code, must be detailed and correct.Your order address MUST MATCH your Shipping address.
3.As we all know,  Because the batteries are dangerous goods pure battery pack shipping time will be longer than ordinary goods.(Some countries cannot be transported by air.) The shipping time for the package is usually 10 to 50 days.

4.The delivery time of the above countries is only the reference time given by us, not the delivery time we promised.
5.If you have not received the package for a long time, it does not mean it has been lost. Your package could have arrived at the local post office or mailbox at your door.
6.Package tracking information can be found in most countries through the following websites.There are also a few countries that require a designated website to query.If you cannot find the package tracking information, please contact our customer service. 
7. Tracking URL:  https://www.17track.net/en
8.If your confirmation time is coming, you still haven't receive the goods, please contact us, we will extend the delivery date at the first time.

User Manual for Laptop Battery：

1.When you get the battery, please try to calibrate the new battery. You can recharge new battery for 6-12 hours at the first time,then discharge it up to 5-10%. Please repeat it 2 to 3 times! to fully activate the lithium ion to reach the maximum capacity.
2.When the battery is in normal use, if the battery discharge reaches 5%, it must be shut down recharged. It is strictly forbidden to discharge the battery to 0%, because it is easy to damage and accelerate the deterioration of the battery.
3.For a long time without the use of batteries need to charge to more than 70% of the preservation, storage time is best not more than 3 months.
4.Avoid artificial squeezing, disassembly, falling, heating or short circuit.
5.To use special equipment to charge.
6.Try to avoid using the battery in an environment where the temperature is too high or too low.
7.The computer does not recognize the battery, the battery connector may be in bad contact with the computer socket. At this time it is necessary to check if the copper battery connector is exposed.
8. If the battery cannot be charged normally, it is not necessarily the fault of the battery. Motherboard, power adapter, system, ambient temperature, etc., will affect the battery to not work properly.
9.  Battery 3.6v and 3.7V, 7.2V and 7.4V, 10.8V and 11.1V, 14.4V and 14.8V are just different parameters, the actual effect is the same.

Battery activation program：

When the device charges the battery for the first time,due to different voltages and unstable currents,the device will stop charging the battery when the battery is half charged (sometimes more,sometimes less). If this happens, don't worry, Just remove the battery from the device, reinstall and recharge. A new battery that is charged for the first time may require several iterations. Please be assured that. This is normal.

Return & Warranty Policy：

1.We provide 24 months warranty. A replacement or repairwill be provided for the defective products during this 2 years warranty.(Attention: If your item sent back for repair, refund or replacement, we don't bare the shipping that your part cost.)

2.We will not bear the warranty for product damage caused by human beings. For example, if a battery product is not charged for a long time, the battery chip will be locked and cannot be charged due to the excessive loss of battery power. (If the electronic product is not in use, it is also necessary to ensure that the product is charged once a month to ensure the life of the battery.)

3.The natural wear and tear of battery products is not covered by the warranty. (Because the battery is a consumable product, as the usage time increases, the performance of the battery will get worse and worse.)
4.If the return is due to the mistakes of buyers, for example, wrong model purchase or do not need the battery after transaction the return shipping fee should paid by the buyer.
5.Before returning the items,plase confirm the return address with us. Please send the tracking number when have returned the parcel. As soon as we receive the items,we will exchange the item or make refund ASAP.
6.Return items should include the original packaging and accessories

Five Star Feedback：

1.  We are really appreciate your positive feedback or five stars feedback if your are satisfied with our products ,and meanwhile our system will also leave positive feedback for you automatically.
2.  Please contact us by email immediately if your item have any problem when you receive it. We will try our best to help you to solve the problem. Please don't open a dispute or leave a negative feedback before communicate with us.
Wish you a pleasant shopping experience in our store!

Tips：

1.It needs professional technology to change the build-in laptop battery. We recommend you go to a repair shop to install it. If the buyer's own installation process causes the machine and other losses, the shop is not responsible.
2.Our prices DO NOT include any customs duty or tax.
3. Once the package is shipped, the buyer cannot cancel the order.

4.There may be 2 or even more than 2 P/N codes for the same model of laptop battery.We cannot guarantee that the battery's P/N code will be the same as your battery.But we will guarantee that the batteries are perfectly compatible.

If you have made order about our goods,Indicate that you have read and accepted the above terms.