We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-ion laptop battery with label showing 40Wh 14.8V 4 cells

TAURKENAM

TAURKENAM XCMRD 40Wh 14.8V laptop battery

SKU CH-M29F-5WXKH

40 Wh lithium-ion replacement battery at 14.8 V for Dell Inspiron, Latitude and Vostro laptops

  • Battery TypeLithium-Ion
  • Replaces many Dell part numbers including XCMRD and P28F
  • Fits Inspiron 14 15 17 and Latitude 3440 3540 models
  • 40 Wh capacity at 14.8 V powers extended sessions
  • Four lithium-ion cells deliver reliable recharge cycles
  • Built-in circuit protection guards against overcharge and short circuits

Direct replacement for Dell 40Wh packs

This lithium-ion battery delivers 14.8V and 40Wh from four cells. It matches the XCMRD part number and a long list of Dell service codes including P28F, 4WY7C and FW1MN. The pack is new and uses grade-A cells with built-in circuit protection.

Fits Inspiron 14 15 17 Latitude 3440 3540 Vostro

The battery slots into the existing bay on compatible Inspiron 14 3421 3437, Inspiron 15 3521 3537 3542 3543, Inspiron 17 3721 3737, Latitude 3440 3540 and Vostro 2421 2521 models. No adapter or cable changes are required. It frees the notebook from wall power for mobile work.

Replaces worn or swollen original units

When the factory pack no longer holds charge or shows physical swelling, this unit restores full runtime. The jump is worth it if the laptop otherwise meets your needs and the original battery is at end of life. Buyers needing higher capacity than 40Wh should look elsewhere.

Highlights

  • Replaces many Dell part numbers including XCMRD and P28F
  • Fits Inspiron 14 15 17 and Latitude 3440 3540 models
  • 40 Wh capacity at 14.8 V powers extended sessions
  • Four lithium-ion cells deliver reliable recharge cycles
  • Built-in circuit protection guards against overcharge and short circuits

Specifications

Battery TypeLithium-Ion

Questions about this item

How long does the 40Wh capacity last under sustained load before the battery needs recharging?

The 40Wh rating indicates total energy storage; actual runtime under sustained load varies by laptop model and workload, so the limit depends on the specific system's power draw.

Does the 14.8V lithium-ion pack generate noticeable heat or noise during all-day operation?

The battery itself has no moving parts and produces no noise; heat output is minimal under normal use, though the laptop's own cooling system manages overall temperature.

Which Dell laptop models must I already own for this XCMRD battery to fit and work?

This battery replaces part numbers XCMRD, P28F, 4WY7C and others listed, and fits compatible Dell Inspiron 14, 15, 17, Latitude 3440, 3540 and Vostro 2421, 2521 series.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.