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Black rectangular laptop battery with four cells and label showing XCMRD 40Wh 14.8V

PISKEKAT

PISKEKAT XCMRD 40Wh 14.8V laptop battery 17-3737 3437 14R 5421 5437 FW1MN 4WY7C

SKU CH-EPR0-PPZ7W

40 Wh 14.8 V replacement battery fits Dell Inspiron, Latitude and Vostro models including 14, 15 and 17 inch series

  • Battery TypeLaptop Batteries
  • Ready for Dell Inspiron 14 3421 3437 14R 5421 5437
  • Fits Dell Inspiron 15 3542 3543 3521 3537 3531 15R 5521 5537
  • Works with Dell Inspiron 17 3721 3737 5749 17R 5737 5721
  • Compatible with Dell Latitude 3440 3540 E3440 E3540
  • Matches Dell Vostro 2421 2521 3441 3445 3446 3449 3546 3549

40 Wh 14.8 V replacement battery

This new lithium-ion pack supplies 40 Wh at 14.8 V using four cells in a black housing. It is built as a direct replacement for Dell Inspiron 14, 15 and 17 models as well as Latitude 3440, 3540, E3440, E3540 and Vostro 2421, 2521 series laptops. Buyers who need a higher-capacity pack or a different voltage should look elsewhere.

Thermals noise and power draw

The battery operates at the standard 14.8 V nominal voltage and draws power only during charging, adding negligible heat to the laptop chassis. Normal use produces no audible noise because there are no moving parts. Users who require active cooling or fan-assisted thermal management will not find it here.

Sustained load behaviour

Grade A cells deliver consistent output across the full discharge cycle without sudden voltage sag. The 40 Wh capacity supports typical office workloads for a full session before recharge is needed. Buyers expecting extended runtime for heavy rendering or gaming workloads will need a larger-capacity alternative.

Highlights

  • Ready for Dell Inspiron 14 3421 3437 14R 5421 5437
  • Fits Dell Inspiron 15 3542 3543 3521 3537 3531 15R 5521 5537
  • Works with Dell Inspiron 17 3721 3737 5749 17R 5737 5721
  • Compatible with Dell Latitude 3440 3540 E3440 E3540
  • Matches Dell Vostro 2421 2521 3441 3445 3446 3449 3546 3549

Specifications

Battery TypeLaptop Batteries

Questions about this item

How do I install the XCMRD 40Wh 14.8V battery in my Dell Inspiron 15 3000 series laptop?

Power off the laptop, remove the bottom screws, detach the old pack connector, fit the new 4-cell pack in the same orientation, reconnect the cable, replace the cover and screws, then charge fully before first use.

What maintenance or replacement will the XCMRD 40Wh battery need over time?

No routine service is needed; when the pack no longer holds enough charge for your work, replace it with another 14.8V 40Wh unit matching part numbers such as XCMRD or FW1MN.

What limit appears first during a long workload on the XCMRD 40Wh 14.8V battery?

The 40Wh capacity sets the run-time ceiling; under sustained load the pack will deplete before any thermal or voltage throttle engages.

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