Battery for ASUSPRO B9440FA B9440U B9440UA C41N1619 7.6V 57Wh Li-ion Laptop Battery [2-Year Warranty]

**Important
Voltage Warning: **
Please confirm that your original battery is ** 7.6V ** before purchasing. Using an incorrect voltage battery may damage your laptop or cause safety hazards. This replacement is specifically designed for ASUSPRO B9440 series models requiring 7.6V.

**Compatible Models: **
This battery is compatible with the following
ASUS laptop models:
- ASUSPRO B9440FA
- ASUSPRO B9440U
- ASUSPRO B9440UA

**Replaces Original Part Number: **
C41N1619

**Product

Specifications

: **

| Specification |

Details

|
|---------------|---------|
| Battery Type | Li-ion |
| Voltage | 7.6V |
| Capacity | 57Wh / 7500mAh (typical) |
| Cell Count | 4 cells |
| Color | Black |
| Weight | Approx. 280g |
| Warranty | 2 Years |

**Comparison Table (Original vs Replacement): **

| Feature | Original ASUS C41N1619 | Our Replacement |
|---------|------------------------|-----------------|
| Voltage | 7.6V | 7.6V |
| Capacity | 57Wh | 57Wh |
| Safety Protection | Yes | Yes (multi-layer) |
| Warranty | 1 year (varies) | 2 years |
| Price | High | Affordable |

**Installation Tips: **

1. Power off your laptop and unplug the AC adapter.

2. Remove the bottom cover (screws may be required keep them safe).

3. Locate the old battery and gently disconnect the cable from the motherboard.

4. Remove the old battery and insert the new one, connecting the cable firmly.

5. Reattach the bottom cover and power on your laptop.

6. For best performance, fully charge the new battery before first use.

**Note: ** If your laptop does not recognize the battery immediately, please allow it to charge for 23 hours, then restart the system. In rare cases, a BIOS update may be needed check your laptop manufacturers support page.

We are a professional laptop battery seller with years of experience on eBay and Newegg. All our batteries are tested before shipping to ensure quality and reliability. If you have any questions about compatibility or installation, feel free to contact us we are here to help!