B31N1631 Laptop Battery Compatible for Asus VivoBook 15 A505 A505BA A505BP A505ZA F505 F505BA F505BP F505ZA S505 S505BA S505BP S505ZA X505 X505BA X505BP X505ZA R504 R504BA R504BP R504ZA K505 K505ZA

Price: ₹8,999 - ₹2,999.00
(as of Nov 22, 2025 13:48:54 UTC – Details)

Product Description

Welcom to WeFly Laptop Battery

High Performance Laptop Batteries

Our laptops have become essential to how we do business, communicate with friends, shop online and many more. That’s why you need to treat your machine with WeFly high performance laptop batteries – batteries you can count on, batteries that can keep up with you and your schedule. Our laptop batteries are constructed to meet or exceed OEM specifications for safety and efficiency, yet we still managed to create an economical alternative to expensive OEM batteries. Packed with a ton of safety features – When it comes to laptop batteries – WeFly is your best bet!

WeFly laptop battery instruction

1 First check if the battery is the same size as your original battery after receiving it. When installing the battery, pay attention to whether the battery cable is fixed. If the battery cable is not installed correctly, the battery may not be charged.

2. If you use the battery for the first time after installing the battery, please do not charge the battery immediately, first use the battery to 10-20%, and then charge the battery, and cycle charging 5-6 times to activate the maximum use of the battery space.

3. We recommend that you search for battery removal tutorials on the Internet in advance, or seek help from a professional technician. We won’t responsible for any damage due to improper operation.

Specifications

Battery Type: Li-ionVoltage: 11.52VCapacity: 42Wh/3653mAhBattery Color: BlackCertificate: CE,RoHS,FCCCondition: 100% New from Manufacturer, Grade A Cell

Compatibility

Compatible with Part Numbers:

B31N1631 0B200-02510500 0B200-02510000 0B200-02510200

Compatible Machine Models(ctrl+f to search for your laptop model):

Replacement for Asus VivoBook 15 A505 A505BA A505BP A505ZA Series,Replacement for Asus VivoBook 15 F505 F505BA F505BP F505ZA Series,Replacement for Asus VivoBook 15 S505 S505BA S505BP S505ZA Series,Replacement for Asus VivoBook 15 X505 X505BA X505BP X505ZA Series,Replacement for Asus VivoBook 15 R504 R504BA R504BP R504ZA Series,Replacement for Asus VivoBook 15 K505 K505ZA Series.

Grade A++ Cells

Charges Quickly

Longer Lasting Time Steady Output

Lower Power Consumption

More than 500 Times Recycle

Durable Usage and Safety

Install A New Battery

1, You need to turn off your laptop and disconnect the power.

2, Disconnect the connection between the old battery and the motherboard to avoid unnecessary damage caused by disassembling the battery. Then unscrew the old battery screws one by one and carefully save each screw.

3, Remove the old battery, carefully install the new battery on the battery case, screw in the screw, and connect the wiring of the new battery.

4, If you don’t understand the above steps, you can search for the video about laptop battery

Grade “A” cells

capacity is true, stable current, low self-discharge

short circuit, overheat, and overload protections

How to maximize battery life?

1. Change your laptop power plan settings, choose the power saver plan. Then Change advanced power settings, scroll down to find Processor power management. Click the On-battery option and reduce the processor state to 20%.

2. Always keep your laptop neat and clean. The dust easily enters the hardware through the vents which are meant to release the heat generated from various computer components.

Close Wi-Fi, Bluetooth, and other settings. This can help your computer save precious battery

ENHANCED IC

Built in smart control chip conveniently offers Quicker charging, lower power consumption and longer discharge time.

Built To Perform

We’ve incorporated Grade A battery cells to ensure longer battery life and durability

How to wake up the battery?

A. Disconnect all external devices from your laptop.

B. Remove the battery.

C. Press the power switch to shut down

D. Plug in the battery and restart the computer.

E. Connect the adapter to see if the battery is working properly

Top Quality Battery Cells

As laptop battery users ourselves, we wanted to deliver a battery that doesn’t only only last long, but also safe for use. We’ve incorporated Grade A WeFly battery cells to ensure longer battery life, durability, and lower power consumption. All of our batteries offer 1000+ recharge cycles over life of battery

【Specification】Voltage:11.52V.Capacity: 42Wh/3653mAh/3-Cell. Battery Type: Li-ion. Condition:100% New from Manufacturer.
Compatible Models -: for Asus VivoBook 15 A505 A505BA A505BP A505ZA F505 F505BA F505BP F505ZA S505 S505BA S505BP S505ZA X505 X505BA X505BP X505ZA R504 R504BA R504BP R504ZA K505 K505ZA Battery.
Compatible Part Number -: B31N1631 0B200-02510500 0B200-02510000 0B200-02510200 laptop battery.
6 Months replacement warranty
Note: Please check the Picture and Confirm it before order