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Rectangular black laptop battery with rounded edges and connector strip

DELL

DELL 312-1439 65 Wh 6-cell lithium-ion primary battery for Latitude E6440 E6540 Precision M2800

SKU CH-J0TS-6GPZ7 MPN 312-1439

A 65 Wh, 6-cell lithium-ion primary battery for Latitude E6440, E6540 and Precision M2800 notebooks

  • 65 Wh capacity powers Latitude E6440 and E6540 notebooks
  • Six-cell lithium-ion design fits Precision M2800 workstations
  • Slim 8.2 x 1.9 x 0.8 in profile slides into the battery bay
  • Weighs 11.52 oz for light mobile carrying
  • Genuine Dell 312-1439 part ensures proper fit and charging

Genuine Dell 65 Wh 6-Cell Battery

This is a new Dell primary battery, model 312-1439, built with six lithium-ion cells rated at 65 Wh. It is designed as a direct replacement for the original power source in compatible Dell mobile workstations and laptops. The unit weighs 11.52 oz and measures 8.2 in by 1.9 in by .8 in.

For Latitude E6440, E6540 and Precision M2800 owners

This battery fits Dell Latitude E6440, Latitude E6540 and Precision Mobile Workstation M2800 systems. It is not suitable for users of other Dell series or non-Dell notebooks. Buyers needing a higher capacity than 65 Wh or a different cell configuration should look at other options.

Capacity is 65 Wh

The single specification that determines fit is the 65 Wh capacity in a 6-cell lithium-ion form factor. Only devices listed as compatible with this exact rating will accept the battery. Verify your machine matches the Latitude E6440, E6540 or Precision M2800 before purchase.

Highlights

  • 65 Wh capacity powers Latitude E6440 and E6540 notebooks
  • Six-cell lithium-ion design fits Precision M2800 workstations
  • Slim 8.2 x 1.9 x 0.8 in profile slides into the battery bay
  • Weighs 11.52 oz for light mobile carrying
  • Genuine Dell 312-1439 part ensures proper fit and charging

Specifications

BrandDell
Shipping weight0.41 kg
Package size284 × 117 × 41 mm

Questions about this item

How much heat or noise does the 65 Wh 6-cell lithium-ion battery produce during all-day use?

The battery has no moving parts and generates no audible noise; heat output is minimal during normal discharge in a Latitude E6440, E6540 or Precision M2800.

What must the buyer already own for this 312-1439 battery to work?

A compatible Dell Latitude E6440, Latitude E6540 or Precision Mobile Workstation M2800 with the original battery bay.

Will the 65 Wh primary battery fit and charge correctly in an older Latitude E6440 that has been in service for several years?

Yes, the 8.2 in × 1.9 in × .8 in form factor matches the factory bay, so it seats and charges like the original unit.

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