Technize

What Battery Does a Dell Latitude E5540 Take?

Dell Latitude E5540

These are the battery part numbers observed in hardware reports for this model.

Battery

Part numbers

  • DELL 45HHN33 — seen in 4 reports
  • DELL WGCW633 — seen in 4 reports
  • DELL CXF6641 — seen in 2 reports
  • DELL M7T5F3A — seen in 2 reports
  • DELL NVWGM4A — seen in 2 reports
  • DELL 5CGM4A7 — seen in 1 report
  • DELL CXF664A — seen in 1 report
  • DELL CXF664B — seen in 1 report

Reports for this model and slot contain multiple part numbers. The reports do not establish that those parts are interchangeable.

Manufacturer
Samsung SDI, SMP, Sanyo, LG, Dynapack
Capacities observed
66.6 Wh, 65.5 Wh, 99.9 Wh, 48.8 Wh
Voltage
11.10 V
Chemistry
Li-ion

Reports for this model and slot contain multiple capacities. Match the specifications on your existing battery and verify any change with the manufacturer.

Based on 29 reports.

Based on 29 independent hardware reports for the Dell Latitude E5540.

Before you order, verify the replacement:
  • Match the exact part number printed on your current battery, or confirm a different number in the manufacturer’s service manual.
  • Check voltage, connector, polarity, dimensions, and mounting points against the original battery.
  • Make sure the seller names your exact laptop model or variant and offers a suitable return policy.

A part number appearing in these reports is an observation, not a guarantee that it fits every unit sold under the same model name.

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How we know

This answer is derived from 29 independent hardware reports for the Dell Latitude E5540, of which 100% agree. We publish a model only when the reports agree overwhelmingly.

Check it yourself

On Windows, open a terminal and run powercfg /batteryreport, then open the generated HTML report — it names the battery’s model and part number. On Linux, run upower -i /org/freedesktop/UPower/devices/battery_BAT0. On any laptop, the surest method is the label printed on the battery itself, visible once you remove the back panel.

Other laptops reporting the same battery part number

These field reports contain an exact matching part number at the same observed voltage. That is useful evidence, but it does not guarantee the connector, dimensions, mounting points, firmware, or physical fit.

Browse all Dell battery records →

Battery health and replacement signs

Short runtime, unexpected shutdowns, or a large drop from design capacity can justify a closer check; a charging fault does not by itself prove the battery is worn out. See how to check battery health, judge replacement signs, or diagnose a charging problem.

Dell Latitude E5540 battery questions

What battery part number was reported for the Dell Latitude E5540?

Hardware reports contain “DELL 45HHN33”, “DELL WGCW633”, “DELL CXF6641”, “DELL M7T5F3A”, “DELL NVWGM4A”, “DELL 5CGM4A7”, “DELL CXF664A”, “DELL CXF664B”. Confirm the printed identifier and physical specifications on your installed battery before ordering.

What battery capacity was observed?

The reports contain 48.8 Wh, 65.5 Wh, 66.6 Wh, 99.9 Wh. Multiple values can reflect variants or replacements, so match your own label rather than choosing capacity alone.

Does a matching part number guarantee fit?

No. Verify the exact laptop variant, voltage, connector, dimensions, mounting points, and manufacturer or seller documentation as well.

More Dell laptops

All Dell models →

Battery part numbers derived from linuxhw/DMI, licensed CC-BY-4.0.