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Battery for ASUS VivoBook S300 S300C S400 C31-X402 11.1V 4400mAh 48Wh, Compatible with C31N1402 C31-X402 Series, 12-Month Warranty
- High-Capacity 4400mAh / 48Wh Li-ion Battery Delivers longer runtime for work, study, and entertainment, outperforming standard 3000mAh options.
- Perfect Fit for ASUS VivoBook S300/S400 Series Specifically designed for S300, S300C, S400, and C31-X402 models, ensuring seamless installation and reliable performance.
- Triple Safety Protection Built-in overcharge, over-discharge, and short-circuit protection circuits for safe daily use and extended battery lifespan.
- Easy Plug-and-Play Installation No drivers or software needed; simply replace your old battery and charge fully before first use.
- Month Warranty & 30-Day Money-Back Guarantee Buy with confidence; we stand behind our quality and offer fast customer support.
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Overview
Specs
Reviews
**Product Overview**
Upgrade or replace your aging ASUS VivoBook battery with this high-performance 11.1V 4400mAh replacement. Designed for the S300, S300C, S400, and C31-X402 series, this battery restores your laptops original battery life, allowing you to work, stream, and browse longer without being tethered to a power outlet.
**Important Voltage Warning**
Please verify your original battery voltage before purchasing. This battery is 11.1V (3-cell series). If your original battery is 14.8V or 7.4V, this unit will NOT be compatible. Incorrect voltage may damage your laptop or cause charging failure.
**Compatible Models & Part Numbers**
- Laptop Models: ASUS VivoBook S300, S300C, S300CA, S400, S400CA, S400C, X402, X402C, X402CA
- Battery Part Numbers: C31N1402, C31-X402, C31-X402-01, C31-X402-02, C31-X402-03, C31-X402-04, C31-X402-05, C31-X402-06, C31-X402-07, C31-X402-08, C31-X402-09, C31-X402-10
**Specifications Table**
| Specification | Value |
|---------------|-------|
| Battery Type | Lithium-Ion (Li-ion) |
| Voltage | 11.1V (nominal) |
| Capacity | 4400mAh / 48Wh |
| Cell Count | 3 cells |
| Color | Black |
| Weight | Approx. 240g |
| Dimensions | 270 x 40 x 20 mm (check fitment) |
| Certification | CE, FCC, RoHS |
**Comparison Table: Original vs. Replacement**
| Feature | Original ASUS Battery | Our Replacement |
|---------|----------------------|-----------------|
| Voltage | 11.1V | 11.1V (identical) |
| Capacity | 4400mAh (varies) | 4400mAh (same or higher) |
| Safety Protection | Standard | Overcharge/over-discharge/short-circuit |
| Warranty | 12 months (limited) | 12 months (full) |
| Price | High | Affordable |
**Installation Tips**
1. Power off your laptop and unplug the AC adapter.
2. Remove the bottom cover (screws may be required).
3. Disconnect the old battery cable and gently lift out the battery.
4. Insert the new battery, reconnect the cable, and secure the cover.
5. Charge the battery to 100% before first use for optimal calibration.
6. If the battery does not charge, check that the connector is fully seated and the voltage matches your original.
**Package Includes**
- 1 x Replacement Battery
-
- 1 x Installation Guide
**Customer Support**
We offer 12-month warranty and 30-day hassle-free returns. If you have any questions about compatibility or installation, please contact us were here to help!
Upgrade or replace your aging ASUS VivoBook battery with this high-performance 11.1V 4400mAh replacement. Designed for the S300, S300C, S400, and C31-X402 series, this battery restores your laptops original battery life, allowing you to work, stream, and browse longer without being tethered to a power outlet.
**Important Voltage Warning**
Please verify your original battery voltage before purchasing. This battery is 11.1V (3-cell series). If your original battery is 14.8V or 7.4V, this unit will NOT be compatible. Incorrect voltage may damage your laptop or cause charging failure.
**Compatible Models & Part Numbers**
- Laptop Models: ASUS VivoBook S300, S300C, S300CA, S400, S400CA, S400C, X402, X402C, X402CA
- Battery Part Numbers: C31N1402, C31-X402, C31-X402-01, C31-X402-02, C31-X402-03, C31-X402-04, C31-X402-05, C31-X402-06, C31-X402-07, C31-X402-08, C31-X402-09, C31-X402-10
**Specifications Table**
| Specification | Value |
|---------------|-------|
| Battery Type | Lithium-Ion (Li-ion) |
| Voltage | 11.1V (nominal) |
| Capacity | 4400mAh / 48Wh |
| Cell Count | 3 cells |
| Color | Black |
| Weight | Approx. 240g |
| Dimensions | 270 x 40 x 20 mm (check fitment) |
| Certification | CE, FCC, RoHS |
**Comparison Table: Original vs. Replacement**
| Feature | Original ASUS Battery | Our Replacement |
|---------|----------------------|-----------------|
| Voltage | 11.1V | 11.1V (identical) |
| Capacity | 4400mAh (varies) | 4400mAh (same or higher) |
| Safety Protection | Standard | Overcharge/over-discharge/short-circuit |
| Warranty | 12 months (limited) | 12 months (full) |
| Price | High | Affordable |
**Installation Tips**
1. Power off your laptop and unplug the AC adapter.
2. Remove the bottom cover (screws may be required).
3. Disconnect the old battery cable and gently lift out the battery.
4. Insert the new battery, reconnect the cable, and secure the cover.
5. Charge the battery to 100% before first use for optimal calibration.
6. If the battery does not charge, check that the connector is fully seated and the voltage matches your original.
**Package Includes**
- 1 x Replacement Battery
-
- 1 x Installation Guide
**Customer Support**
We offer 12-month warranty and 30-day hassle-free returns. If you have any questions about compatibility or installation, please contact us were here to help!
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 90 days
- This item is covered by xuanlan Return Policy
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