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Rectangular black lithium-ion laptop battery with three cells

DELL

DELL 0HYH8 66dWX 3-cell Li-ion laptop battery 11.4V 57Wh 4878mAh Black

SKU CH-Z7KZ-62SG4

A 3-cell lithium-ion replacement battery delivering 57 Wh at 11.4 V for compatible Dell laptops

  • Battery TypeLithium-Ion
  • 57 Wh capacity extends unplugged runtime
  • 4878 mAh rating delivers sustained power
  • 4 V output matches original specifications
  • 3-cell lithium-ion design balances weight and capacity
  • Black finish suits Dell laptop aesthetics

Replacement 3-cell Li-ion battery

The Dell 0HYH8 66dWX is a new 3-cell lithium-ion replacement battery rated at 11.4 V, 57 Wh and 4878 mAh. It is designed for owners of compatible Dell laptops who need to restore original run time. The black finish matches the original chassis colour. No other capacities or cell counts are offered for this part number.

Interface and form-factor limits

The pack uses the proprietary Dell connector and physical outline defined for the 0HYH8 series, so it only fits laptops that list this exact part as compatible. Voltage is fixed at 11.4 V and cannot be adjusted for other platforms. Capacity and cell count are not selectable; the battery delivers the stated 57 Wh within the original mechanical envelope.

Capacity decides suitability

The single specification that determines fit is the 57 Wh / 4878 mAh rating at 11.4 V; if the service manual for your laptop calls for a different watt-hour value or voltage, this unit will not meet the requirement. Buyers who need a higher-capacity pack or a different voltage must source the part specified by their model's documentation.

Highlights

  • 57 Wh capacity extends unplugged runtime
  • 4878 mAh rating delivers sustained power
  • 4 V output matches original specifications
  • 3-cell lithium-ion design balances weight and capacity
  • Black finish suits Dell laptop aesthetics

Specifications

Battery TypeLithium-Ion

Questions about this item

Is the 57 Wh capacity the only option for this Dell 0HYH8 battery?

Yes, this replacement battery is supplied with a single 57 Wh / 4878 mAh capacity at 11.4 V.

How long will the 57 Wh rating actually run my laptop?

Runtime depends on the laptop model and workload; the 57 Wh rating indicates total stored energy, not a fixed hours figure.

Does the 11.4 V rating limit which Dell models can use this battery?

The battery is designed for Dell systems that require an 11.4 V 3-cell Li-ion pack; check your service manual for the 0HYH8 or 66dWX part number.

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