Laptop Battery for ASUS UX4000F UX481F UX481FA UX481FL C41N1901, 15.4V 4000mAh 62Wh, High Capacity Compatible with ZenBook Series, 12-Month Warranty

**Product Overview**
Upgrade or replace your aging ASUS ZenBook battery with this high-performance 15.4V 4000mAh (62Wh) replacement battery. Designed to be a perfect match for the UX4000F, UX481F, UX481FA, and UX481FL series, this battery restores your laptops original battery life and performance. Whether you are working from home, traveling, or studying, this battery ensures your device stays powered throughout the day.

**Important Voltage Warning**
Please verify that your original battery voltage is 15.4V before purchasing. Using an incorrect voltage battery may cause damage to your laptop or battery. This replacement is strictly for 15.4V models. If your original battery is 11.4V or 14.8V, this product will not be compatible.

**Compatible Laptop Models (Partial List) **
- ASUS ZenBook UX4000F
- ASUS ZenBook UX481F
- ASUS ZenBook UX481FA
- ASUS ZenBook UX481FL
- Also compatible with other models using battery part number C41N1901

**Replaces Original Part Numbers**
- C41N1901
- C41N1901-1
- C41N1901-2

**Battery Specifications**

| Specification |

Details

|
|: --- |: --- |
| Battery Type | Lithium-Ion (Li-ion) |
| Voltage | 15.4V |
| Capacity | 4000mAh / 62Wh |
| Color | Black |
| Cell Grade | Grade A |
| Protection | Overcharge, Over-discharge, Short Circuit, Over-temperature |
| Warranty | 12 Months |

**Comparison Table: Original vs. Replacement**

| Feature | Original ASUS Battery | Our Replacement Battery |
|: --- |: --- |: --- |
| Voltage | 15.4V | 15.4V (Exact Match) |
| Capacity | 4000mAh / 62Wh | 4000mAh / 62Wh (Same or Higher) |
| Cell Quality | OEM Grade | Grade A (High Quality) |
| Safety Certification | Yes | Yes (CE, RoHS) |
| Price | High | Affordable |
| Warranty | Limited | 12 Months |

**Installation Tips**
1. **Power Down & Unplug** Turn off your laptop and disconnect the AC adapter before starting.
2. **Remove Old Battery** Locate the battery compartment on the bottom of your laptop. Unscrew the retaining screws (if any) and gently disconnect the battery cable.
3. **Install New Battery** Align the new battery with the connector, press firmly until it clicks into place, then secure with screws.
4. **Charge Fully** After installation, charge the battery to 100% before first use for optimal performance.
5. **Calibration (Optional) ** For best results, fully discharge and then fully recharge the battery once every two months.

**Package Includes**
- 1x Replacement Battery for ASUS UX4000F / UX481F Series
(with installation guide)

**Note**
- Please confirm your laptop model and original battery part number before ordering.
- Do not disassemble, puncture, or expose the battery to high temperatures.
- If you have any compatibility questions, feel free to contact us before purchasing.

**Why Choose Our Battery? **
- Strict quality control and factory testing ensure reliable performance.
- Eco-friendly packaging and materials.
- Fast shipping and easy return policy.

Upgrade your ASUS ZenBook today with a battery that delivers the power and reliability you need.