Battery for Alienware 17/18 M17X R5 M18X R3 2F8K3 P18E P19E 11.1V 7800mAh 86Wh, High Capacity Li-ion Laptop Battery [2-Year Warranty]

**Product Overview**
Upgrade your Alienware M17X R5 or M18X R3 with this premium replacement battery. Designed to match OEM specifications, it provides reliable power for your gaming laptop, whether youre in the middle of a raid, editing videos, or working on the go.

** Important Voltage Warning**
Please confirm your original battery voltage before ordering. This battery is ** 11.1V (3-cell series)**. If your original battery is 14.8V or 15.2V, this unit will NOT be compatible. Check the sticker on your old battery or use system info tools to verify voltage.

**Compatibility List**
Alienware 17 (2013-2014 models)
Alienware 18 (2013-2014 models)
Alienware M17X R5
Alienware M18X R3
Original Part Numbers: 2F8K3, P18E, P19E, 0P18E, 0P19E, 0F8K3

**Specifications Table**

| Parameter | Value |
|-----------|-------|
| Battery Type | Li-ion |
| Voltage | 11.1V ( 11.1V nominal) |
| Capacity | 7800mAh / 86Wh |
| Cell Count | 6 cells |
| Color | Black |
| Weight | Approx. 380g |
| Certification | CE, FCC, RoHS |
| Warranty | 2 Years |

**Comparison Table**

| Feature | Our Battery (7800mAh) | Standard OEM (6600mAh) |
|---------|-----------------------|------------------------|
| Runtime (gaming) | ~ 2.5 -3 hours | ~2 hours |
| Runtime (light use) | ~4-5 hours | ~3- 3.5 hours |
| Cycle Life | 500+ cycles | 300-400 cycles |
| Overcharge Protection | Yes | Yes |
| Price | Competitive | Often 2x higher |

**Installation Tips**
1. Power off your laptop and unplug all cables.
2. Remove the bottom panel screws (refer to your laptop manual for exact locations).
3. Gently disconnect the old battery cable and lift the battery out.
4. Insert the new battery, connect the cable firmly, and replace the panel.
5. Charge the battery fully before first use (about 4-5 hours).
6. For best lifespan, avoid draining below 10% regularly.

**Package Includes**
- 1x Replacement Battery
-


**Why Choose Us? **
We specialize in laptop batteries for gaming and high-performance notebooks. Every unit passes 12-step quality control, including capacity testing, voltage stability checks, and safety tests. Your purchase is backed by our 2-year warranty and friendly customer support.

**Note: ** This is a third-party replacement, not an OEM product. Compatibility is tested for listed models only. If unsure, please message us with your laptop model and original battery part number.

**Order now and get back to gaming with full power! **