Replacement Battery for Dell G3 3500 3790 3590 G5 5587 5500 5590 266J9 MV07R 11.4V 51Wh, High Capacity, 1-Year Warranty 266J9 51WH

**Product Overview**
This high-quality replacement battery is specifically designed for Dell G3 and G5 series laptops, including models G3 3500, 3790, 3590, G5 5587, 5500, and 5590. It replaces original part numbers 266J9 and MV07R, delivering the same 11.4V voltage and 51Wh capacity as the OEM battery. Whether youre working, studying, or gaming, this battery provides reliable power to keep your laptop running smoothly.

**Important Voltage Warning**
Please check your original batterys voltage before purchasing. This battery is 11.4V. If your original battery is 11.4V, it is fully compatible. If your original battery is 15.2V or another voltage, this battery will NOT work and may cause damage. Always confirm voltage, capacity, and connector type before ordering.

**Compatible Laptop Models (not exhaustive) **
- Dell G3 3500
- Dell G3 3790
- Dell G3 3590
- Dell G5 5587
- Dell G5 5500
- Dell G5 5590
- Other Dell models using 266J9 or MV07R batteries

**Compatible Part Numbers**
- 266J9
- MV07R

**Battery Specifications**
| Specification |

Details

|
|---------------|---------|
| Voltage | 11.4V |
| Capacity | 51Wh |
| Cell Type | Lithium-ion |
| Color | Black |
| Connector | Original plug & play |
| Warranty | 1 Year |

**Comparison Table: OEM vs Replacement**
| Feature | OEM Battery | Our Replacement |
|----------|-------------|----------------|
| Voltage | 11.4V | 11.4V (identical) |
| Capacity | 51Wh | 51Wh (identical) |
| Safety Protection | Standard | Overcharge, over-discharge, short circuit, overheat |
| Price | High | Affordable |
| Warranty | Limited | 1 Year |

**Installation Tips**
1. Turn off your laptop and unplug the AC adapter.
2. Remove the bottom cover screws (refer to your laptop manual).
3. Disconnect the old battery cable and remove the battery.
4. Insert the new battery, reconnect the cable, and replace the cover.
5. Charge the battery fully before first use for best performance.
6. If the battery does not power on, check the cable connection and voltage compatibility.

**Package Includes**
- 1 x Replacement Battery ( 11.4V, 51Wh)


**Note**
This is a third-party replacement product, not an OEM Dell product. It is fully tested and meets or exceeds OEM specifications. Please contact us if you have any questions about compatibility or installation.