1. Introduction
This manual provides essential information for the safe and effective use of your Hubei C21N1401 laptop battery. Please read this manual thoroughly before installation and operation to ensure optimal performance and safety.
2. Safety Information and Warnings
WARNING: Lithium-ion batteries can pose a fire or burn hazard if mishandled. Follow all instructions carefully.
- Do not disassemble, crush, puncture, or short circuit the battery.
- Do not expose the battery to high temperatures (above 60°C / 140°F) or direct sunlight.
- Do not dispose of the battery in fire or water.
- Keep the battery away from children.
- If the battery appears damaged, swollen, or leaking, discontinue use immediately and dispose of it properly.
- Use only the specified charger for your laptop.
- Do not load or transport the package if it is damaged.

Image 1: Top view of the Hubei C21N1401 battery, showing its label with model number, voltage, capacity, and various safety certifications and warnings.

Image 2: Packaging with a caution label indicating the presence of a Lithium-ion battery and warning against loading or transporting damaged packages.
3. Product Specifications
- Model: C21N1401
- Battery Type: Li-ion (Lithium-ion)
- Voltage: 7.6V
- Capacity: 37Wh
- Color: Black
- Compatible Part Numbers: C21N1401, C21PQCH, PP21AT149Q-1
- Item Weight: 8.4 ounces
- Package Dimensions: 9.09 x 4.96 x 0.94 inches

Image 3: Graphic displaying key product information: model C21N1401, voltage 7.6V, and Li-ION battery type.
4. Compatibility
This battery is compatible with the following ASUS laptop series and models:
- For ASUS X455LA Series:
- X455LA
- X455LA-4030U
- X455LA-WX002D
- X455LA-WX040H
- X455LA-WX053D
- X455LA-WX053H
- X455LA-WX058D
- X455LA-WX063D
- X455LA-WX078H
- X455LA-WX080D
- X455LA-WX081D
- X455LA-WX082D
- X455LA-WX086
- X455LA-WX213H
Please verify your laptop's model number and original battery's part number before purchase to ensure compatibility.
5. Installation Instructions
Battery replacement in laptops can be complex. If you are unsure, it is recommended to seek professional assistance or consult your laptop's service manual.
- Power Off and Disconnect: Completely shut down your laptop and disconnect it from the AC adapter.
- Remove External Devices: Disconnect all external peripherals (USB drives, external monitors, etc.).
- Access Battery Compartment: Depending on your laptop model, you may need to remove screws to open the bottom cover or access a dedicated battery compartment.
- Locate and Disconnect Old Battery: Carefully locate the existing battery. Disconnect any cables connecting the battery to the motherboard. There might be screws holding the battery in place. Remove them.
- Remove Old Battery: Gently lift and remove the old battery from its compartment.
- Install New Battery: Place the new Hubei C21N1401 battery into the compartment, ensuring it fits correctly. Reconnect any cables and secure it with screws if applicable.
- Reassemble Laptop: Replace the bottom cover or battery compartment cover and secure it with screws.
- Initial Charge: Connect the AC adapter and fully charge the new battery before its first use.

Image 4: Detailed view of the battery's interface connector and mounting tabs, crucial for proper installation.

Image 5: Two batteries shown from different angles, illustrating the "Heads" (connector side) and "Tails" (opposite side) for correct orientation during installation.
6. Operating Instructions
- First Use: For optimal performance, fully charge the battery before its first use.
- Charging: Connect your laptop to the AC adapter to charge the battery. The charging indicator on your laptop will show the charging status.
- Discharging: The battery will power your laptop when disconnected from the AC adapter.
- Battery Calibration (Recommended): Periodically, allow the battery to discharge completely until the laptop shuts down, then fully recharge it. This helps calibrate the battery's charge indicator.
7. Maintenance and Storage
- Avoid Extreme Temperatures: Do not expose the battery to extreme heat or cold. Optimal operating temperature is between 10°C and 35°C (50°F and 95°F).
- Regular Use: If you frequently use your laptop with the AC adapter, it's beneficial to occasionally discharge the battery to about 20% and then fully recharge it to keep the battery cells active.
- Long-Term Storage: If storing the battery for an extended period (more than a month), charge it to approximately 50-70% capacity and store it in a cool, dry place. Avoid storing it fully charged or fully discharged.
- Cleaning: Keep the battery contacts clean and free from dust or debris.
8. Troubleshooting
Common Issues and Solutions:
- Battery Not Charging:
- Ensure the AC adapter is properly connected to both the laptop and a working power outlet.
- Verify the AC adapter is functional and compatible with your laptop.
- Check for any physical damage to the battery or charging port.
- Try restarting your laptop.
- Update or reinstall battery drivers in your operating system's Device Manager.
- Laptop Not Recognizing Battery:
- Ensure the battery is correctly installed and its connector is securely seated.
- Restart your laptop.
- Check your laptop's BIOS/UEFI settings to see if the battery is detected.
- Update or reinstall battery drivers.
- Short Battery Life:
- Adjust power settings in your operating system to optimize battery usage.
- Close unnecessary applications running in the background.
- Reduce screen brightness.
- Perform a battery calibration cycle (full discharge then full charge).
If problems persist after attempting these solutions, please contact customer support.
9. Warranty and Support
This Hubei C21N1401 laptop battery comes with a 12-month manufacturer warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty does not cover damage caused by:
- Accident, abuse, misuse, or unauthorized modification.
- Improper installation or removal.
- Operating conditions outside the specified parameters.
For warranty claims or technical support, please contact your retailer or the manufacturer directly. Please have your purchase receipt and product model number available.





