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Black rectangular six-cell lithium-ion laptop battery

Dr. Battery

Dr. Battery MPL05271P-30 laptop battery 11.1V 4400mAh 6-cell

SKU CH-3G7Q-3SPG7

Replacement 6-cell lithium-ion battery delivering 11.1V and 4400mAh 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
  • Fits 14-, 15- and 17-inch Inspiron models including 3421, 3521 and 5749
  • 6-cell lithium-ion design delivers 4400 mAh at 11.1 V for extended runtime
  • Smart control chip enables quicker charging, lower consumption and longer discharge
  • Built-in protections guard against short circuit, overheat and overload
  • New from Dr. Battery, established 2006, with 1-year warranty

Dr. Battery MPL05271P-30 replacement laptop battery

The Dr. Battery MPL05271P-30 is a new 6-cell lithium-ion pack rated at 11.1V and 4400mAh. It serves owners of compatible Dell Inspiron 14, 15 and 17 models who need a direct replacement for an exhausted original battery.

49Wh capacity and 11.1V output define the energy

The 49Wh rating sets the total energy available per charge cycle. Runtime scales with the notebook's power draw, so heavier workloads or brighter screens will reduce operating time accordingly.

Suitable for daily office work and media playback

The 4400mAh cell configuration handles typical productivity tasks and video streaming. It is not intended for users who require extended unplugged sessions beyond the capacity of a standard 6-cell design.

Highlights

  • Fits 14-, 15- and 17-inch Inspiron models including 3421, 3521 and 5749
  • 6-cell lithium-ion design delivers 4400 mAh at 11.1 V for extended runtime
  • Smart control chip enables quicker charging, lower consumption and longer discharge
  • Built-in protections guard against short circuit, overheat and overload
  • New from Dr. Battery, established 2006, with 1-year warranty

Specifications

BrandDr. Battery
ModelMPL05271P-30
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

Which Dell Inspiron models does the MPL05271P-30 fit?

This 6-cell 11.1V 4400mAh pack replaces Dell part numbers 312-1387, 312-1390, 312-1392, 312-1433, 451-12107, 451-12108, 49VTP and 4DMNG across Inspiron 14, 15 and 17 series from 3421 through 5749.

What runtime can I expect from the 4400mAh rating in daily use?

The 49Wh capacity typically delivers several hours of mixed workload on compatible Inspiron 14, 15 and 17 models; actual time varies with screen brightness, CPU load and wireless activity.

Does the built-in smart chip manage charging to the 11.1V spec?

Yes, the integrated control chip regulates charge current to the 11.1V nominal voltage, providing short-circuit, overheat and overload protection during each cycle.

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