Laptop Battery for ASUS U3300F UX333F RX333FA BX333FN C31N1815 11.55V 50Wh, High Capacity, 1-Year Warranty

**Important
Voltage Warning: **
Please verify your original battery voltage before purchasing. This replacement battery is ** 11.55V ** (nominal). Using an incorrect voltage may damage your device. Check the label on your old battery or refer to your device manual.

**Compatible Models & Part Numbers: **
This battery is specifically designed for the following ASUS laptop models and replaces the original part number:
- ASUS U3300F
- ASUS UX333F
- ASUS RX333FA
- ASUS BX333FN
- Original Part: C31N1815

**Specifications: **
| Parameter | Value |
|-----------|-------|
| Battery Type | Li-ion |
| Voltage | 11.55V (nominal) |
| Capacity | 4550mAh / 50Wh |
| Cell Count | 4 cells |
| Color | Black |
| Weight | Approx. 300g |
| Warranty | 1 Year |

**Comparison Table: Original vs. Replacement**
| Feature | Original ASUS Battery | Our Replacement |
|---------|----------------------|-----------------|
| Voltage | 11.55V | 11.55V (exact match) |
| Capacity | 50Wh | 50Wh (identical) |
| Safety Circuits | Yes | Yes (multi-protection) |
| Price | High | Affordable |
| Warranty | Limited | 1-Year |

**Installation Tips: **
1. **Power off** your laptop and disconnect the AC adapter.

2. Remove the bottom panel screws (refer to your device manual for exact screw locations).

3. Gently disconnect the old battery cable from the motherboard.

4. Remove the old battery and insert the new one, aligning the screw holes.

5. Reconnect the battery cable, replace the bottom panel, and tighten screws.

6. Charge the battery fully before first use (about 3-4 hours).

**Note: ** If your laptop does not power on after installation, please check the battery connector is fully seated. For any issues, contact our support team for immediate assistance.