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Black rectangular lithium-ion laptop battery with connector, 54Wh 11.4V

Beisite

Beisite R73TC 54Wh laptop battery for Latitude 3340 3440 3540 3480 3580 5340 5440 5540

SKU CH-R13M-S92BV

A 54Wh 11.4V lithium-ion replacement battery compatible with Latitude 3340 3440 3540 3480 3580 5340 5440 5540 series

  • Battery typeLithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity54 Wh
  • Product colorBlack
  • Product typeBattery
  • Compatible withFor Latitude 3340 3440 3540 3480 3580 Series
  • 54Wh capacity extends runtime on compatible Latitude models
  • 4V lithium-ion chemistry matches original power specifications
  • Replaces part numbers R73TC, DR02P, 2X1V9, GTG7N, GRWKG
  • Fits Latitude 3340, 3440, 3540, 3480, 3580, 5340, 5440, 5540 series
  • 12-month warranty backs the new battery

R73TC 54Wh battery for Dell Latitude

The Beisite R73TC is a new lithium-ion replacement battery rated at 11.4 volts and 54 watt-hours. It is coloured black and carries part number 31CP5/66/81. The pack is designed to fit a range of Latitude models including the 3340, 3440, 3540, 3480, 3580, 5340, 5440 and 5540 series.

Suits owners of listed Latitude models needing

This unit replaces original part numbers R73TC, DR02P, 2X1V9, GTG7N and GRWKG. It is not for users whose laptop requires a different voltage or capacity, nor for machines outside the compatibility list unless the original part number matches one of the cited replacements.

11.4V 54Wh lithium-ion cell

The single specification that decides fitment is the 11.4 volt 54 watt-hour lithium-ion chemistry. If your original battery shows the same voltage and capacity and your part number appears in the replacement list, this pack will work.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $47.99
Pricier than about 80% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameR73TC
Model nameR73TC
Part number31CP5/66/81
Product colorBlack
Product typeBattery
Power
Battery typeLithium-Ion
Battery voltage rating11.4 V
Battery capacity54 Wh
Compatibility
Compatible withFor Latitude 3340 3440 3540 3480 3580 Series

Questions about this item

Does the 54 Wh battery run noticeably warmer or drain faster after a full day of continuous use?

The 54 Wh lithium‑ion cell at 11.4 V is designed to match the original thermal profile, so sustained daily workloads should not produce extra heat or accelerated drain compared with the factory pack.

My Latitude 5440 uses the original 31CP5 part — will this R73TC unit fit without any extra cabling or brackets?

Yes, the R73TC replaces part numbers 31CP5, 66, 81, DR02P, 2X1V9, GTG7N and GRWKG, so it slots straight into the 5440 battery bay with no additional hardware required.

Can I keep my older Latitude 3340 charger and docking station when swapping in this 11.4 V pack?

The 11.4 V output matches the voltage expected by Latitude 3340, 3440, 3540, 3480 and 3580 systems, so existing chargers and docks continue to work normally.

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