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Black rectangular 6-cell laptop battery with label

Dr. Battery

Dr. Battery MPL05271P-28 6-Cell 11.1V 4400mAh laptop battery

SKU CH-CXZ0-84W39

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

  • Battery type6 Cell Lithium-Ion
  • Battery voltage rating11.1 V
  • Battery capacity4,400 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withDell Inspiron 14(3421) / 14(3437) / 14(3442) / 14R(5421) / 1
  • Compatible with many Dell Inspiron models
  • Six-cell lithium-ion design delivers 4400 mAh capacity
  • 1 V output matches original Dell specifications
  • Smart control chip enables quicker charging and longer discharge
  • Built-in protections against short circuit, overheat and overload

Replacement battery for Dell Inspiron models

The Dr. Battery MPL05271P-28 is a new 6-cell lithium-ion pack built to match OEM specifications for a wide range of Dell Inspiron 14, 15 and 17 laptops. It delivers 11.1V and 4400mAh capacity, providing a direct swap for worn or failed original units. Buyers who need a higher-capacity pack or a different voltage will not find it here.

Black 6-cell lithium-ion construction

The black housing contains six lithium-ion cells and an integrated smart control chip that manages charging and discharge cycles. This chip enables short-circuit, overheat and overload protections while supporting quicker charging and lower power consumption. Users who require hot-swap capability or external charging contacts not present on the original design should verify compatibility first.

49Wh energy rating with built-in safety protections

Rated at 49Wh, the battery supplies standard run-time for compatible Inspiron systems under normal workloads. The onboard protections guard against short circuits, overheating and overloads during daily charge and discharge.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $34.99
Pricier than about 62% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL05271P-28
Product colorBlack
Product typeBattery
Power
Battery type6 Cell Lithium-Ion
Battery voltage rating11.1 V
Battery capacity4,400 mAh
Compatibility
Compatible withDell 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

Questions about this item

What voltage does the 11.1V lithium-ion pack deliver to compatible Dell Inspiron models?

The battery supplies 11.1 volts to every listed Inspiron 14, 15 and 17 series notebook.

Which Dell chassis sizes accept the 6-cell black pack?

It fits 14-inch, 15-inch and 17-inch Inspiron bodies including the 3421, 3521 and 5748.

How is the pack secured and what step do installers often skip?

Slide the pack into the bay until the latch clicks; many forget to engage the locking latch fully.

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