F310J Battery Guide for Alienware M17x R2

The F310J battery (11.1V, 85Wh, 9-cell) is a critical legacy component for the Alienware M17x R2 laptop Alibaba Parts-People. As of 2026, the market for this specific part has shifted into a "scarcity phase" characterized by high demand from enthusiasts and limited OEM supply Dell.

Market Trends & Insights (2026)

* Extreme Scarcity: Genuine Dell-produced F310J batteries have reached "end-of-life" status. Finding verified "new" stock is nearly impossible, as most remaining units are refurbished or aged inventory Dell Cpumedics.

* High Replacement Value: Due to its rarity, working units command premium prices, often ranging between $80 and $150 Cpumedics Reddit.

* Compatibility Risks: A major market pain point is the "centered connector" issue found in generic third-party batteries. The F310J requires an off-center connector specific to the Alienware M17x R2 chassis, leading to high return rates for generic replacements Dell.

* Shift Toward Alternatives: Users are increasingly sourcing cross-compatible part numbers such as W075J and C852J, which share identical physical and electrical specifications Delllaptopbattery Parts-People.

Product Specifications Summary

Feature	Specification
Type	F310J (DP/N: W075J, C852J)
Compatibility	Alienware M17x, M17x R2 Parts-People
Voltage	11.1V (10.8V compatible) Delllaptopbattery
Capacity	85Wh / 7800mAh (9-cell Li-ion) Harddiskdirect Alibaba
Dimensions	231.20 x 90.90 x 24.70 mm Delllaptopbattery

I have identified active wholesale suppliers on B2B platforms currently offering the F310J and its compatibles. The detailed product list including pricing and MOQs is available in the deliverable below.

F310j Battery

Overview

Market Trends & Insights (2026)

Product Specifications Summary

Alienware M17x R2 Battery F310j 85wh 11.1v

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Sources & References