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Black rectangular laptop battery with four cells, 14.8V 40Wh

myVolts

myVolts 14.8V 40Wh 4-cell laptop battery

SKU CH-W14W-N269P

A 14.8V 40Wh 4-cell lithium-ion replacement battery compatible with Dell Inspiron 14, 15, 17, Latitude 3440, 3540 and Vostro 2421, 2521 series

  • 8 V 40 Wh lithium-ion pack powers compatible Dell laptops
  • 4-cell design delivers reliable runtime for daily workloads
  • Replaces Dell part numbers including 0MF69 24DRM 312-1387 312-1390 312-1392 312-1433
  • Fits Inspiron 14 15 17 Latitude 3440 3540 Vostro 2421 2521 series
  • UL CE FCC RoHS certified with short-circuit overheat overload protection

What this battery replaces

This 14.8V 40Wh 4-cell lithium-ion pack replaces original Dell batteries across Inspiron 14, 15 and 17 series, Latitude 3440 and 3540, and Vostro 2421 and 2521 models. It matches part numbers such as 0MF69, 24DRM, 312-1387, 312-1390, 312-1392 and 312-1433 among others.

Check before ordering

Verify the exact model number on your current battery or laptop chassis against the supported list, which includes Inspiron 3421, 3437, 3521, 3531, 3537, 3541, 3542, 3543, 5421, 5437, 5521, 5537, 5721, 5727, 5737, 3721, 3737 and Latitude E3440, E3540. Confirm the voltage reads 14.8V and the capacity is 40Wh.

Who this suits

Suitable for owners of the listed Dell laptops needing a direct 100% new replacement with UL, CE, FCC and RoHS safety certifications and built-in short-circuit, overheat and overload protection. Not for users whose device requires a different voltage, cell count or connector, or who need a higher-capacity pack than 40Wh.

Highlights

  • 8 V 40 Wh lithium-ion pack powers compatible Dell laptops
  • 4-cell design delivers reliable runtime for daily workloads
  • Replaces Dell part numbers including 0MF69 24DRM 312-1387 312-1390 312-1392 312-1433
  • Fits Inspiron 14 15 17 Latitude 3440 3540 Vostro 2421 2521 series
  • UL CE FCC RoHS certified with short-circuit overheat overload protection

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the box and do I need any extra tools to install the battery?

The package contains the 14.8V 40Wh 4-cell Li-ion battery only. No tools or cables are included. The battery fits directly into the Dell laptop compartment, so a small Phillips screwdriver is the only item you may need to remove the old unit.

How do I choose the right version for my Dell model?

Match your laptop's exact model number — such as Inspiron 15 3542, Latitude 3440, or Vostro 2521 — against the compatibility list. Also verify the original part number, for example 0MF69, 312-1387, or 49VTP, which are printed on the old battery label.

What does the 40Wh rating mean for daily use?

At 14.8V and 40Wh the pack stores roughly 2800mAh. In a typical Inspiron 15 3000 series this delivers several hours of office work or web browsing on a full charge, though actual runtime varies with screen brightness, CPU load, and battery age.

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