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Rectangular black laptop battery with label showing 11.1V 65Wh

FOCUSTEC

FOCUSTEC VV0NF laptop battery 11.1V 65Wh for Dell Latitude E5540 E5440

SKU CH-7Y85-T6J8X

A new 6-cell lithium-ion replacement battery rated at 11.1V and 65Wh for Dell Latitude E5540 and E5440 models

  • Battery TypeLithium-Ion
  • 65 Wh capacity delivers extended runtime for Dell Latitude E5540 and E5440
  • 1 V lithium-ion chemistry matches original Dell specifications
  • Six-cell design replaces multiple Dell part numbers including VV0NF and 0M7T5F
  • Brand-new condition ensures full performance without prior wear
  • 12-month warranty and 30-day return window provide purchase confidence

Compatible Dell Latitude Models

This replacement battery fits Dell Latitude E5540 and E5440 laptops. It matches part numbers VV0NF 0M7T5F 0K8HC 1N9C0 7W6K0 F49WX NVWGM CXF66 WGCW6 N5YH9. Users with those models can restore original runtime without modification. Builders needing a different form factor or voltage must choose another product.

Thermal and Power Behaviour

The lithium-ion pack delivers 11.1V and 65Wh across six cells. In normal use it runs at the voltage the laptop expects and draws current within the original design limits. No active cooling is required and the cell chemistry keeps self-discharge low during storage. Systems with higher power demands will deplete the pack faster than the rated capacity suggests.

Warranty and Return Coverage

A 12 month warranty covers defects in materials and workmanship. A 30 day money-back window allows return if the battery does not meet expectations. No software or drivers are bundled and no accessories beyond the battery itself are included. Buyers wanting installation tools or diagnostic utilities must source them separately.

Highlights

  • 65 Wh capacity delivers extended runtime for Dell Latitude E5540 and E5440
  • 1 V lithium-ion chemistry matches original Dell specifications
  • Six-cell design replaces multiple Dell part numbers including VV0NF and 0M7T5F
  • Brand-new condition ensures full performance without prior wear
  • 12-month warranty and 30-day return window provide purchase confidence

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the 6-cell 11.1V battery in my Dell Latitude E5540 and which step is often missed?

Power off the laptop, unplug the AC adapter, slide the release latch to remove the old pack, insert the new battery until it clicks, then fully charge it before first use — skipping the initial full charge is the common mistake.

What maintenance will the 65Wh lithium-ion pack need over its life?

No scheduled maintenance is required; keep the contacts clean, avoid storing the pack fully discharged, and replace the unit once runtime drops below your needs.

What is the first limit reached during sustained use of this 11.1V 65Wh battery?

The pack delivers its rated 65Wh until voltage drops to the laptop's cut-off threshold, at which point the system shuts down to protect the cells.

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