Technize

What Battery Does a Dell Latitude E7240 Take?

Dell Latitude E7240

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

Battery

Part numbers

  • DELL KWFFN33 — seen in 24 reports
  • DELL P8TC727 — seen in 5 reports
  • DELL 9C26T33 — seen in 4 reports
  • DELL Y9HNT47 — seen in 3 reports
  • DELL Y9HNT4B — seen in 3 reports
  • DELL 49VTP — seen in 2 reports
  • DELL J0MTR33 — seen in 2 reports
  • DELL J31N751 — seen in 2 reports

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

Manufacturer
SMP, LG, Samsung SDI, Sanyo
Capacities observed
45.1 Wh, 31.4 Wh, 46 Wh, 45 Wh
Voltage
7.40 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 60 reports.

Based on 60 independent hardware reports for the Dell Latitude E7240.

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 60 independent hardware reports for the Dell Latitude E7240, 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 E7240 battery questions

What battery part number was reported for the Dell Latitude E7240?

Hardware reports contain “DELL KWFFN33”, “DELL P8TC727”, “DELL 9C26T33”, “DELL Y9HNT47”, “DELL Y9HNT4B”, “DELL 49VTP”, “DELL J0MTR33”, “DELL J31N751”. Confirm the printed identifier and physical specifications on your installed battery before ordering.

What battery capacity was observed?

The reports contain 31.4 Wh, 45 Wh, 45.1 Wh, 46 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.