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Rectangular black laptop battery with label showing 40WH 14.8V XCMRD

myVolts

myVolts 40WH 14.8V XCMRD laptop battery for Dell Inspiron 15 3000 Series

SKU CH-H7Q6-PJ978

40 Wh, 14.8 V replacement battery compatible with Dell Inspiron 14, 15 and 17 3000-series and Latitude 3440, 3540 models

  • Replaces original Dell XCMRD battery with 40WH 14.8V capacity
  • Fits Inspiron 14, 15, 17 and Latitude 3000 series models
  • Matches over 30 Dell part numbers including 49VTP and T1G4M
  • Brand-new condition ensures full charge cycles from day one
  • 12-month exchange guarantee covers manufacturing defects

40WH 14.8V replacement for Inspiron and Latitude

This new 40WH 14.8V battery replaces the XCMRD pack used across Dell Inspiron 14 15 17 series and Latitude 3440 3540 models. It matches part numbers including 49VTP T1G4M 4WY7C FW1MN and the 312-1390 312-1387 312-1433 312-1392 service codes. Buyers needing a different voltage or a higher capacity pack should look elsewhere.

Install by disconnecting the old pack first

Installation starts with the laptop off and the charger unplugged. The supplier advises unplugging the old battery from the motherboard before removing any screws to avoid short-circuit damage. Screws must be kept in order because lengths differ across the chassis. The new pack fits the existing battery bay without modification.

Steady 14.8V output during long sessions

The cell chemistry delivers a stable 14.8V nominal voltage throughout extended discharge rather than only in short bursts. Capacity is rated at 40WH so runtime scales with the workload of the host machine. No thermal throttle behaviour or rapid voltage sag is documented for this replacement unit.

Highlights

  • Replaces original Dell XCMRD battery with 40WH 14.8V capacity
  • Fits Inspiron 14, 15, 17 and Latitude 3000 series models
  • Matches over 30 Dell part numbers including 49VTP and T1G4M
  • Brand-new condition ensures full charge cycles from day one
  • 12-month exchange guarantee covers manufacturing defects

Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the 14.8V 40WH XCMRD battery is working after installation?

Power on the laptop without the AC adapter; the OS should detect the new battery, show a charge percentage and begin charging when the adapter is reconnected.

What is included in the box and what must I buy separately?

The box contains the 40WH XCMRD replacement battery only; no tools, screws or AC adapter are supplied.

Which part number should I match to choose the correct version for my Dell?

Match your original battery part number to the listed compatibles such as 49VTP, T1G4M, 312-1390, 312-1387, 312-1433 or 451-12107.

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