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Black rectangular 8-cell lithium-ion laptop battery with label showing 14.8V 86Whr 5811mAh

NShi

NShi laptop battery 86Whr 14.8V for Alienware 17 R1 18 R1

SKU CH-2H7K-XMWAH

86 Whr 14.8 V 8-cell lithium-ion replacement battery for Alienware 17 R1 and 18 R1 laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityALIENWARE 17 R1, ALIENWARE 18 R1
  • Battery Type8 Cell Lithium-Ion
  • Battery Voltage14.8V
  • Battery Capacity5811mah
  • 86 Whr capacity powers Alienware 17 R1 and 18 R1 for longer sessions
  • 8 V output matches original spec for stable system operation
  • 5811 mAh lithium-ion cell count delivers reliable runtime per charge
  • Eight-cell design balances weight and endurance for daily mobile use
  • CE FCC RoHS certified safety testing ensures correct voltage and circuit protection

Direct replacement for Alienware 17 R1 and 18 R1

This new GreenTech battery replaces OEM part numbers 2F8K3, G6M0W and KJ2PX in Alienware 17 R1 and 18 R1 laptops. It uses an 8-cell lithium-ion design rated at 14.8V and 86Whr to restore original runtime. The pack is black and built to match the factory form factor.

Suits owners needing a like-for-like swap.

Buyers with an Alienware 17 R1 or 18 R1 who want a straight swap will find this pack fits the bay and connector. Users of any other laptop series or later Alienware revisions should look elsewhere because the pin-out and physical shape differ. The 5811mAh capacity targets the same runtime the machine shipped with.

86Whr capacity decides fit and runtime

The single figure that determines whether this is the correct part is the 86Whr energy rating paired with 14.8V output. If the original battery label shows 86Whr and 14.8V, this unit matches the electrical specification. A different watt-hour or voltage value means the battery is not compatible with the system power management.

Highlights

  • 86 Whr capacity powers Alienware 17 R1 and 18 R1 for longer sessions
  • 8 V output matches original spec for stable system operation
  • 5811 mAh lithium-ion cell count delivers reliable runtime per charge
  • Eight-cell design balances weight and endurance for daily mobile use
  • CE FCC RoHS certified safety testing ensures correct voltage and circuit protection

Specifications

BrandGreenTech
Model2F8K3, G6M0W, 0G6M0W, KJ2PX, 0KJ2PX
ColorBlack
TypeBattery
CompatibilityALIENWARE 17 R1, ALIENWARE 18 R1
Battery Type8 Cell Lithium-Ion
Battery Voltage14.8V
Battery Capacity5811mah

Questions about this item

Does this 14.8V 86Whr battery fit my Alienware 17 R1 without any extra parts?

Yes, it is a direct replacement for the original 2F8K3, G6M0W, KJ2PX cells and slides into the existing battery bay on the Alienware 17 R1.

Will the 8-cell lithium-ion pack work with the original charger and power circuitry in my Alienware 18 R1?

The 14.8V output matches the factory specification, so the stock charger and motherboard power management recognise it normally.

How can I verify the new 5811mAh pack is reporting the correct capacity after installation?

Check the battery health section in Windows or the Alienware Command Center; it should show a design capacity close to 86Whr and a full-charge reading near 5811mAh.

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