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Rectangular black three-cell lithium-ion laptop battery

PowerWarehouse

PowerWarehouse R73TC laptop battery for Latitude 3340 3440 3540 5440 5540

SKU CH-3T03-N2C86

A 3-cell lithium-ion replacement battery delivering 11.4V and 4623mAh for Latitude 3340, 3440, 3540, 5340, 5440, 5540 and Precision 3480, 3580 models

  • CompatibilityLATITUDE 3340, 3440, 3540, 5340, 5340 2-IN-1, 5440, 5540, PR
  • Battery Type3 Cell Lithium-Ion
  • Compatible with multiple Latitude and Precision models
  • Replaces OEM part numbers 09HKT5, 9HKT5, CN-09HKT5, R73TC
  • 3 cell lithium-ion design delivers 11.4V and 4623mAh capacity
  • New condition ensures full performance from first use
  • 12 month warranty provides long-term confidence

Compatible Dell Latitude and Precision models

This replacement battery fits Dell Latitude 3340, 3440, 3540, 5340, 5340 2-IN-1, 5440 and 5540 laptops. It also supports Precision 3480 and 3580 mobile workstations. The unit replaces OEM part numbers 09HKT5, 9HKT5, CN-09HKT5 and R73TC. It is intended for owners of those specific models who need a direct swap.

Thermals, noise and power draw

As an internal lithium-ion pack, the battery produces no audible noise during operation. Heat output is limited to normal cell warmth during charge and discharge cycles. The pack delivers 11.4V at 4623mAh capacity, drawing power only when the laptop is plugged in. No active cooling or fan is involved.

Three-cell lithium-ion chemistry

The battery uses a three-cell lithium-ion design rated at 11.4V and 4623mAh. This cell count and voltage determine whether it matches the original specification for the listed laptops. Buyers whose devices require a different cell configuration or voltage will not be able to use this part.

Highlights

  • Compatible with multiple Latitude and Precision models
  • Replaces OEM part numbers 09HKT5, 9HKT5, CN-09HKT5, R73TC
  • 3 cell lithium-ion design delivers 11.4V and 4623mAh capacity
  • New condition ensures full performance from first use
  • 12 month warranty provides long-term confidence

Specifications

Part Number09HKT5, 9HKT5, CN-09HKT5, R73TC
CompatibilityLATITUDE 3340, 3440, 3540, 5340, 5340 2-IN-1, 5440, 5540, PRECISION 3480, 3580
Battery Type3 Cell Lithium-Ion

Questions about this item

How do I install the R73TC battery in my Latitude 5440 and what step is often missed?

Power off the laptop, unplug the AC adapter, remove the bottom cover screws, disconnect the old battery cable before lifting it out, connect the new R73TC cable firmly, replace the cover and screws, then charge fully before first use.

What maintenance or replacement will the 3-cell lithium-ion 4623mAh battery need later?

The 3-cell lithium-ion pack has no user-serviceable parts; capacity will gradually fade after hundreds of cycles, at which point the entire R73TC unit must be replaced with a new compatible battery.

What limit appears first during sustained use of the 11.4V battery?

The 4623mAh capacity determines runtime; under continuous load the voltage will sag toward the low-voltage cutoff, triggering automatic shutdown before thermal limits are reached.

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