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

Dr. Battery

Dr. Battery MPL05271P-06 6-cell 11.1V 4400mAh laptop battery

SKU CH-86Y9-A0PNS

Six-cell lithium-ion replacement battery rated at 11.1 V and 4400 mAh for Dell Inspiron 14, 15 and 17 series laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityDell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 1
  • Battery Type6 Cell Lithium-Ion
  • Battery Voltage11.1V
  • Battery Capacity4400 mAh
  • Replaces multiple Dell Inspiron 14, 15 and 17 models
  • 6-cell lithium-ion design delivers 11.1 V output
  • 4400 mAh capacity provides 49 Wh of energy
  • Built-in smart chip enables quicker charging and longer discharge
  • circuit, overheat and overload protections maintain safe operation

Replacement battery for Dell Inspiron 14 15 17

The Dr. Battery MPL05271P-06 is a new six-cell lithium-ion unit rated at 11.1 volts and 4400 milliampere-hours. It is built to match OEM specifications for a range of Dell Inspiron notebooks including 14-inch, 15-inch and 17-inch models such as the 3421, 3437, 3521, 3531, 5421, 5437, 5521, 5537, 5721, 5737 and 5748. A smart control chip manages charging and discharge while providing short-circuit, overheat and overload protection. The pack delivers 49 watt-hours of energy and carries a one-year warranty.

Suits owners of listed Inspiron models needing

This battery fits the exact Dell part numbers referenced in the compatibility list, including 0MF69, 24DRM, 312-1387, 312-1390, 312-1392, 312-1433 and 451-12107. It is not for users whose laptop requires a different voltage, cell count or physical shape. Buyers who need a higher-capacity pack or a battery for a non-Inspiron series should look elsewhere. The product is also unsuitable if the original battery uses a distinct connector layout not covered by the stated part numbers.

Check your original battery label before ordering

Verify that the original battery shows 11.1 volts and a capacity near 4400 milliampere-hours. Confirm the Dell part number printed on the old pack matches one of the numbers above. Ensure the laptop model appears in the compatibility list covering Inspiron 14, 15 and 17 series from 3421 through 5748. If the label differs in voltage, cell count or part number, this unit will not fit or function correctly.

Highlights

  • Replaces multiple Dell Inspiron 14, 15 and 17 models
  • 6-cell lithium-ion design delivers 11.1 V output
  • 4400 mAh capacity provides 49 Wh of energy
  • Built-in smart chip enables quicker charging and longer discharge
  • circuit, overheat and overload protections maintain safe operation

Specifications

BrandDr. Battery
ModelMPL05271P-06
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

My Dell Inspiron 15 5521 currently runs on a 6-cell 11.1 V pack — will this 4400 mAh unit fit the same bay?

Yes, the MPL05271P-06 is a 6-cell lithium-ion battery rated at 11.1 V and 4400 mAh, matching the form factor and voltage of the original pack used in the Inspiron 15 5521 and other listed models.

I plan to keep my 90 W Dell AC adapter — does this replacement battery charge correctly with that charger?

The built-in smart control chip manages charging to OEM specifications, so the battery will charge normally with the standard Dell adapter that shipped with compatible Inspiron 14, 15 and 17 models.

After installing the battery, how can I confirm the 49 Wh capacity is being reported correctly?

In Windows, open the battery report (powercfg /batteryreport) and check the Design Capacity field — it should read 49 Wh, matching the 11.1 V × 4400 mAh rating of this pack.

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