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Black rectangular six-cell lithium-ion laptop battery with label showing 11.1V 4400mAh

Dr. Battery

Dr. Battery MPL05271P-14 6-cell 11.1V 4400mAh laptop battery

SKU CH-YSNE-DRZ25

6-cell 11.1 V 4400 mAh lithium-ion replacement battery for Dell Inspiron 14, 15 and 17 models

  • ColorBlack
  • TypeBattery
  • CompatibilityDell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 1
  • Battery Type6 Cell Lithium-Ion
  • Battery Voltage11.1V
  • Battery Capacity4400 mAh
  • Replacement for multiple Dell Inspiron models
  • 6-cell lithium-ion design delivers 4400 mAh capacity
  • 1 V output matches original specifications
  • Built-in smart chip enables quicker charging and longer discharge
  • circuit, overheat and overload protections ensure safe use

Replacement battery for Dell Inspiron 14.

This 6-cell lithium-ion unit replaces the original pack in Dell Inspiron 14, 15 and 17 series laptops including the 3421, 3521 and 5721 model families. It delivers 11.1 volts and 4400 mAh capacity for users who need a direct swap when the factory battery no longer holds charge.

Check your original battery part number

Verify that your current battery shows a matching voltage of 11.1V and compare the part numbers listed such as 0MF69, 24DRM, 312-1387, 312-1390, 312-1392, 312-1433 or 451-12107. The pack fits the specific Inspiron models named in the compatibility list and will not suit other Dell lines or non-Dell laptops.

Runs at standard laptop thermals

The integrated smart control chip manages charging current and provides short-circuit, overheat and overload safeguards during normal operation. Expect typical warm-up under load comparable to the original battery, with no additional fan noise or power draw beyond the laptop's own thermal design.

Highlights

  • Replacement for multiple Dell Inspiron models
  • 6-cell lithium-ion design delivers 4400 mAh capacity
  • 1 V output matches original specifications
  • Built-in smart chip enables quicker charging and longer discharge
  • circuit, overheat and overload protections ensure safe use

Specifications

BrandDr. Battery
ModelMPL05271P-14
ColorBlack
TypeBattery
CompatibilityDell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 15(3521) / 15(3531) / 15(3541) / 15(3542) / 15(3543) / 15R(5521) / 15R(5537) / 17(3721) / 17(5748) / 17R(5721) / 17R(5737)
Dell Inspiron 3421 / 3437 / 3443 / 3521 / 3531 / 3537 / 3543 / 3721 / 5749 / 3847 / 5421 / 5437 / 5521 / 5537 / 5721 / 5749 / 7447
Dell Latitude 3440 / 3540 / E3440
Dell Vostro 2421 / 2521 / 3445 / 3446 / 3449 / 3546 / 3549
Original Battery Part Number :
0MF69 / 24DRM / 312-1387 / 312-1390 / 312-1392 / 312-1433 / 451-12107 / 451-12108 / 49VTP / 4DMNG / 4WY7C / G019Y / MR90Y / V8VNT / XCMRD / YGMTN
*** Not
Battery Type6 Cell Lithium-Ion
Battery Voltage11.1V
Battery Capacity4400 mAh

Questions about this item

Does the MPL05271P-14 pack include any tools or cables, or is the battery the only item supplied?

Only the 6-cell 11.1V 4400mAh battery is supplied; no tools, cables or adapters are included.

My original Dell battery is marked 49Wh — does the 4400mAh rating on this unit match that capacity?

Yes, 4400mAh at 11.1V equals 49Wh, so the capacity matches your original specification.

With the built-in smart control chip, how does the 11.1V output behave under heavy load in a Dell Inspiron 15 3521?

The chip regulates charging and discharge, providing short-circuit, overheat and overload protection while maintaining a steady 11.1V output.

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