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How to purchase batteries correctly?
Method 1:You have to find your specific laptop model before ordering a correct battery.
How to check your laptop model?
Press [Win] + [R] , input "msinfo32" , then click "OK" to find your system model in the pop-up window.
Method 2:Take the battery out of your computer, confirm your original battery model and appearance, compared with our battery image, make sure that's what you need.
About Mobik
Mobik is a professional manufacturer of laptop batteries, committed to creating high quality batteries and bringing our customers very cost-effective products. We strictly control the quality of our products and our batteries meet or exceed OEM standards, you can rest assured that shopping with us is safe and reliable.
- Up to 1000+ recharge cycles
- Easy to install
- Safe use anytime
- Reliable performance
Mobik B31N1912 Battery for ASUS
Specifications:
- Model: B31N1912
- Voltage: 11.55V
- Capacity: 42Wh/3550mAh
- Battery Type: Rechargeable Lithium-ion Battery
- Contion: 100% New from Manufacturer, Grade A Cell
Replacement Part Number:
B31N1912 / C31N1912 / 0B200-03680000 / 0B200-03680100
Package included:
1* battery + 1* instruction manual + 1* screwdriver kit
- High-quality materials and circuit board
- 100% compatible to meet OEM specifications
- Longer Discharge Time & Quicker Charging
- Long battery life & lower power consumption
- Short circuit, overheat & overload protection
Safety
All Mobik products are certified by UL / CE / FCC / RoHS for safety. Every one of our replacement notebook batteries are tested to meet or exeed OEM specifications.
Multiple built-in protections
Each battery include multiple built-in protections such as overheating, overcurrent and overload protection for maximum safety.
Perfect Fit
All our batteries are 100% brand new, We offer new generation laptop batteries with Grade A cells, real capacity, long lasting and low power consumption.
Laptop Batteries Maintenance Tips:
New battery:With a new battery, you'd better discharge it to 5%(not 0%) and charge up to 95%.Then cycle 3-4 times to wake up the new battery.
Overuse: Do not always run out of a battery to 0%, this would make it damaged or usage life shortened. Please recharge immediately when the battery reduced to 5%.
Long-term storage:If you remove battery for a long time, it is important to cycle it (discharge => charge) regularly, at least once a month. Please store the unused battery fully charged. Do not store at low power to prevent reduce the lifespan of a battery.
Charging sequence: when charging, first install the battery, then turn on the power, when fully charged, first cut off the power, then pull the power plug.
Installation Suggestion:
- You need to turn off your laptop and disconnect the power.Turn the laptop to the back, install a new battery, and fix it with a tool.
- Battery Installation is easy, you can search for the video about laptop battery or just find a repair technician for help.
- Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of it in fire or water.
- Do not connect adapter for a long time while using the battery. It may damage the battery.
Battery Troubleshooting:
1.Maybe it is caused by a loose battery, please remove the battery and reinstall it again.
2.Maybe due to conductive material damaged which the laptop motherboard and battery anode and cathode contact position, you can try to confirm it with your original battery.
3.Check whether the battery drive is in normal condition, if not, download the corresponding driver software to update.
4.When the computer is turned on, if it is not recognised, it is recommended to update the BIOS settings or please disconnecting the old battery, and holding down the power button for 20 seconds, then connect the new battery.Try a few more times.
Hoosier Hysteria
2025-08-27 17:55:38
The B31N1912 C31N1912 Laptop Battery Replacement for ASUS is a fantastic solution for extending your laptop's life. This battery offers impressive performance, ensuring a long-lasting charge that keeps your device running smoothly throughout the day. It's easy to install and fits perfectly, providing a seamless replacement experience. The battery's high-quality construction and reliable power output make it a dependable choice for any ASUS laptop user. Overall, this replacement battery is an excellent investment for keeping your ASUS laptop powered and efficient.
Kathryn Campbell
2025-08-18 15:41:56
This worked great and better than buying a new computer! My daughter has a cheap ASUS computer and it couldn’t hold a charge after a few years. This worked great and was relatively easy to change out. I am not a technological person, but I watched a YouTube video of a guy changing it out, which was helpful. But it’s really not that hard. The longest part is taking all the screws out of the bottom of the computer, so it will open up. Once it does, you see the exact same battery and how it is installed….it literally just clips onto some little wires in the computer. The only sticking point I had when changing it out, that was not shown in the YouTube video, is there is a little metal latch that goes over where the wires connect. It’s teeny tiny. You have to flip that latch up in order for the old battery to disconnect from the new battery. Then, when you hook together the new battery with the computer, you need to put that latch back down. But this is a super inexpensive way to get a computer working again!
Amber L. Barnes
2025-07-12 18:30:27
My laptop would not stay on without being plugged in. Ordered this battery and replaced old one under an hour. It has been working great since-about 6 months ago. The fit was perfect and it saved my laptop. The directions were very helpful.
ERIKA LEWIS
2025-07-03 13:54:07
Worked exactly as described. My laptop would not stay charged unless it was plugged in. I didn't want to replace the laptop, so I tried replacing the battery and it works perfectly.
Andres p.
2025-06-14 13:39:30
Easy installation, great replacement battery! Talk about a money saver! Did not have to buy a new laptop or pay geek squad for repairs!
Customer
2025-05-07 11:01:53
Thought I needed a new charger because it will have a blinking orange and keeps disconnecting but that didn’t work so tried a new battery and it actually was a solid orange and now it’s white. I have model E410MA. Thanks
Charles L. Ducre
2025-03-04 17:12:13
It was very easy to install. Worked as advertised.
softailrider
2025-01-19 13:19:36
This battery fit as expected. Receiving the small tools especially the guitar pick was invaluable.Instructions for unclipping the connection were poor but video helped us out.
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