2F8K3 KJ2PX Battery for Dell Alienware 17 R1 18 R1 M17X-R5 — 14.8V 86Wh

Product Overview

The 2F8K3 / KJ2PX is a premium 8-cell 86Wh Li-ion replacement battery designed for Dell Alienware 17 R1, 18 R1, M17X-R5, and M18X-R3 series gaming laptops. Built with high-density cells to meet the peak power draw requirements of high-performance gaming hardware, it ensures stable frame rates and dependable mobile runtime. Featuring integrated BMS protection for thermal stability and voltage regulation. Ships 100% brand new with a 1-year warranty.

Technical Specifications

Standard Model	2F8K3 / KJ2PX / G33TT
Capacity	86Wh / 5800mAh
Voltage	14.8V
Battery Type	Li-ion (8-Cell)
Condition	100% Brand New Replacement
Warranty	1 Year

Replace Part Numbers

• 2F8K3
• 02F8K3
• KJ2PX
• 0KJ2PX
• G33TT
• 0G33TT
• 0NU209
• 451-BBCB

Compatible Laptop Models

• Dell Alienware 17 R1
• Dell Alienware 17X M17X-R5
• Dell Alienware 18 R1
• Dell Alienware 18X M18X-R3

FAQ

Q: Is this battery compatible with the Alienware 17 R2?

A: No. The 17 R2 uses an internal battery (model 191YN). This 2F8K3 battery is for the 17 R1 and 18 R1 series with the removable battery chassis. Please verify your exact laptop model.

Q: Can I use this battery for intense gaming away from the charger?

A: Yes. Its 86Wh high-capacity 8-cell design is engineered to handle the high current demands of the Alienware graphics and CPU systems, providing stable power even during heavy loads.