The C31-X402 battery is a replacement for Asus VivoBook S300 and S400 series laptops, with 11.4V and 4000mAh (44Wh). It is compatible with part number 0B200-00300400 and more than 8 models in the series. It is new, with a 3-year warranty and ships from Spain in 24-48 hours.
C31-X402
C31-X402 Battery for Asus VivoBook S300 S400 Laptop - 11.4V 4000mAh 3-Cell Li-Ion
New replacement battery for Asus VivoBook S300 and S400 series. 3-year warranty.
Specifically designed for Asus VivoBook S300 and S400 series models.
4000mAh (44Wh) capacity and 11.4V voltage for extended and stable battery life.
Li-Ion cells with protection circuits against overcharging and overvoltage.
New component with a 3-year warranty (1 year for professionals) and technical support from Spain.
This replacement battery with reference C31-X402 is the ideal solution to restore the battery life of Asus VivoBook S300 and S400 series laptops. Designed for technical services and private users, it offers reliable performance thanks to its 3 Li-Ion cells, a capacity of 4000mAh (44Wh), and a voltage of 11.4V.
Each unit has been checked by our technical team to ensure maximum quality and compatibility. It incorporates protection circuits against overcharging and overvoltage, guaranteeing equipment safety. It is a new component, ready to be installed, and comes with a 3-year warranty that supports its durability and operation.
To ensure 100% compatibility, it is recommended to verify the part number of your laptop's original battery before making the purchase. The installation of this component requires technical knowledge for equipment disassembly.
The 11.4V voltage of this battery is fully compatible with systems that originally use 11.1V or 10.8V batteries, ensuring safe and efficient operation without affecting laptop performance.
For technical services and private users who need to replace the depleted battery of an Asus VivoBook S300 or S400 series laptop.
| Voltage | 11.4 V |
|---|---|
| Capacity | 4000 mAh |
| Energy | 44 Wh |
| Number of cells | 3 |
|---|---|
| Cell technology | Li-Ion |
| Color | Black |
| Condition | New |
|---|---|
| Warranty | 3 years (1 year for professionals) |
Always check the part number printed on your original part before ordering; if in doubt, contact us with the exact model of your device.
Yes, it is compatible. The safest way to confirm is to disassemble your laptop and verify that the part number of your current battery matches C31-X402 or 0B200-00300400. If it matches, this battery is the correct replacement for your device.
We recommend an initial calibration cycle. Charge the battery to 100%, let it rest for an hour, then use it until the laptop shuts down due to low battery (approximately 5%). Finally, charge it back to 100% without interruptions. This helps the system recognize the actual capacity.
Battery life depends on laptop usage (screen brightness, running programs, etc.). With 4000mAh (44Wh), you can expect a duration similar to that of the original battery when it was new, typically between 2 and 4 hours for standard office use.
We offer a 3-year warranty for private customers and 1 year for professionals. If the battery is not compatible or has any defect, you have 14 days to return it. You can arrange the return shipment yourself or request a home collection for 8.90 € in Spain and Portugal.
Orders placed before 16:00 (15:00 on Fridays) are prepared the same day. Shipping to Spain and Portugal takes 24-48 business hours. For other EU destinations, the timeframe is 2 to 5 business days.
Data sheet
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