Asus C31-X402 4 Cell Replacement Battery – Compatible with Asus S300, S400, and F402 Series Laptops

The Asus C31‑X402 replacement battery is a high-grade, 11.1 V lithium-ion battery designed for various Asus VivoBook models such as the S300, S300CA/S300CA‑RS91T, S400 series, and F402 laptops. Delivering approximately 44 Wh (4 000 mAh), this OEM-equivalent pack restores reliable power and enhances mobility for daily use, ensuring seamless compatibility and performance similar to the original battery

Product Features

Wide Compatibility with Asus Laptops

This battery is compatible with a broad range of Asus notebook models, including the S300CA, S300E, S400CA, F402CA, and more. It also supports several original part numbers such as 0B110-00210000, C21-X401, and C31-X402, ensuring a perfect fit and reliable performance.

High-Performance Lithium-Ion Technology

Built using premium lithium-ion cells, this replacement battery delivers consistent power and improved battery life. Its advanced design minimizes energy loss and supports extended usage between charges.

Precision-Engineered for Seamless Installation

Designed to match original OEM specifications, the C31-X402 replacement battery offers hassle-free installation and secure fitment within your Asus laptop, ensuring smooth integration and stable performance.

Enhanced Portability and Lightweight Build

Ideal for professionals and students alike, this battery provides excellent portability without adding bulk. It’s a perfect travel companion for users who need reliable battery backup on the move.

Manufactured by TROOX – Trusted Quality

TROOX batteries undergo strict quality control testing to meet or exceed industry standards. Every unit is tested for safety, durability, and efficiency to ensure dependable operation.

Product Specifications

• Brand: TROOX
• Part Numbers: 0B110-00210000, AR5B225, C21-X401, C31X402, C31-X402, X40PW91
• Compatible Laptop Models:
  • Asus S300CA-RS91T
  • Asus S300E-C1003H
  • Asus S400CA-BSI3T12 / BSI5T14 / BSI7T16
  • Asus S400CA-CA002H / CA006 / CA030H / CA038H / CA039H
  • Asus AR5B225
  • Asus F402CA-WX083H / WX102H / WX103H
• Battery Cell Composition: Lithium Ion
• Voltage: 11.4 Volts
• Unit Count: 1.0 Count
• Recommended Use: Laptop
• Cell Count: 4 Cells
• Manufacturer: TROOX