Battery for ASUS E410M E410MA E510M E510MA L410MA Series 11.55V 42Wh B31N1912 High Capacity, 12-Month Warranty

**Product Overview**
This high-performance replacement battery is specifically designed for ASUS E410M, E410MA, E510M, E510MA, and L410MA series laptops. It uses the exact same specifications as the original B31N1912 battery ( 11.55V, 42Wh, 3800mAh), ensuring a perfect fit and reliable power delivery. Whether you need to replace an aging, swollen, or non-charging battery, this unit restores your laptops mobility and performance.

**Important Voltage Warning**
Please verify your original batterys voltage before purchasing. This battery is rated at ** 11.55V **. If your original battery is 7.6V or 14.4V, it will NOT be compatible and may cause damage. Always check the label on your current battery or consult your device manual.

**Compatibility List (Laptop Models) **
- ASUS E410M Series (E410M, E410MA, E410MA-B, E410MA-D, E410MA-E, etc. )
- ASUS E510M Series (E510M, E510MA, E510MA-B, E510MA-D, etc. )
- ASUS L410MA Series (L410MA, L410MA-B, L410MA-D, etc. )
- Also compatible with: VivoBook 14 E410, VivoBook 15 E510, and similar models using B31N1912 battery.

**Replacement Part Numbers**
- B31N1912
- B31N1912-1
- B31N1912-2
- C31N1912
- 0B200-03120000

**Technical Specifications**
| Parameter | Value |
|-----------|-------|
| Voltage | 11.55V |
| Capacity | 42Wh / 3800mAh |
| Cell Type | Lithium-ion (Grade A) |
| Color | Black |
| Weight | Approx. 200g |
| Dimensions | 270 x 70 x 5 mm (L x W x H) |
| Warranty | 12 Months |

**Comparison: Original vs. Replacement**
| Feature | Original ASUS Battery | Our Replacement |
|---------|----------------------|-----------------|
| Voltage | 11.55V | 11.55V (identical) |
| Capacity | 38Wh 42Wh | 42Wh (equal or higher) |
| Cell Quality | OEM | Grade A, safety-tested |
| Price | High | Affordable |
| Warranty | 6-12 months | 12 months |

**Installation Tips**
1. Power off your laptop and unplug the AC adapter.
2. Remove the bottom cover using a suitable screwdriver (Phillips #0).
3. Disconnect the old battery cable from the motherboard.
4. Remove screws holding the old battery and lift it out.
5. Insert the new battery, secure with screws, and reconnect the cable.
6. Replace the bottom cover and power on the laptop.
7. Charge the battery fully before first use for optimal performance.

**Package Includes**
- 1 x Replacement Battery (B31N1912 compatible)
-
- 1 x Installation guide (digital)

**Note**
- This is a third-party replacement, not an original ASUS product.
- Ensure your laptop model is listed above before purchasing.
- If you are unsure about compatibility, please contact us with your laptops serial number or battery part number.

**Warranty & Support**
We offer a 12-month warranty against manufacturing defects and a 30-day money-back guarantee. If you encounter any issues, our customer service team will respond within 24 hours to assist with replacement or refund.