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Black rectangular 6 cell lithium ion laptop battery

Dr. Battery

Dr. Battery MPL05271P-21 6 Cell 11.1V 4400mAh laptop battery

SKU CH-ZNRV-BG57S

Six-cell lithium-ion pack delivers 11.1 V and 4400 mAh for compatible 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
  • Compatible with Dell Inspiron 14, 15 and 17 models
  • 6-cell lithium-ion design delivers 4400 mAh capacity
  • 1 V output matches original battery specification
  • Built-in smart chip enables quicker charging and longer discharge time
  • Safety protections guard against short circuit, overheat and overload

Replacement Battery for Dell Inspiron

This 6-cell lithium-ion pack supplies 11.1V and 4400 mAh for select Inspiron 14, 15 and 17 models. It is built as a direct replacement for original Dell part numbers including 49VTP, 4DMNG and G019Y. A built-in smart chip manages charging and provides short-circuit, overheat and overload protection. The unit is new and carries a one-year manufacturer warranty.

Suits owners of listed Dell notebooks.

Buyers with a compatible Dell Inspiron 3421, 3542, 5521 or 5737 can install this battery without modification. It will not fit laptops outside the supplied compatibility list, nor will it work with systems that require a different voltage or cell count. Users needing higher capacity or a different form factor should look elsewhere.

11.1V 4400 mAh 6-cell specification decides fit

The electrical ratings of 11.1 volts and 4400 milliampere-hours across six lithium-ion cells determine whether this pack matches the original equipment. Confirm that the original battery shows the same voltage and capacity before purchase. Physical dimensions and connector layout follow the OEM design for the models listed.

Highlights

  • Compatible with Dell Inspiron 14, 15 and 17 models
  • 6-cell lithium-ion design delivers 4400 mAh capacity
  • 1 V output matches original battery specification
  • Built-in smart chip enables quicker charging and longer discharge time
  • Safety protections guard against short circuit, overheat and overload

Specifications

BrandDr. Battery
ModelMPL05271P-21
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

How do I install the MPL05271P-21 battery in my Dell Inspiron 15 3542 and which step do people often miss?

Power off the laptop and disconnect the AC adapter. Remove the bottom case screws, then detach the old battery connector before fitting the new 6 cell 11.1V pack. The step most people miss is reconnecting the battery cable firmly before reassembling the case.

What maintenance or replacement will the MPL05271P-21 need over time?

The 6 cell lithium ion pack is sealed and needs no user maintenance. Plan to replace the battery once its 4400mAh capacity drops below your daily runtime needs, typically after several hundred charge cycles.

What is the first limit I will hit when running the MPL05271P-21 continuously on a Dell Inspiron 17 5748?

The built in smart control chip will trigger overload or overheat protection before the 49Wh pack is fully depleted, shutting the battery down to protect the cells.

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