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Black rectangular 6-cell lithium-ion laptop battery

Dr. Battery

Dr. Battery MPL05221P-22 6 Cell 11.1V 4400mAh laptop battery

SKU CH-QT1W-GV1BP

Six-cell lithium-ion replacement battery rated at 11.1V and 4400mAh for Dell Latitude E5400, E5410, E5500 and E5510 models

  • ColorBlack
  • TypeBattery
  • CompatibilityDell Latitude E5400 / E5400N / E5410 / E5500 / E5500 N-Serie
  • Battery Type6 Cell Lithium-Ion
  • Battery Voltage11.1V
  • Battery Capacity4400mAh / 49Wh
  • 6-cell lithium-ion design delivers 4400mAh capacity for extended runtime
  • 1V output matches original Dell specifications for reliable compatibility
  • Replaces multiple Dell part numbers including 312-0746 and KM769
  • Built-in smart chip enables overheat and short-circuit protection
  • Fits Latitude E5400, E5410, E5500 and E5510 series laptops

Dr. Battery 6-Cell 11.1V Replacement

The Dr. Battery MPL05221P-22 is a new 6-cell lithium-ion unit rated at 11.1V and 4400mAh. It serves as a direct replacement for Dell Latitude E5400, E5410, E5500 and E5510 series laptops. The pack matches original part numbers including 312-0746, KM668 and RM649.

Simple swap with one common pitfall

Installation requires only a screwdriver to release the battery latch on the laptop base. The pack aligns with the existing connector; no soldering or firmware steps are needed. The frequent mistake is ordering without verifying the exact original part number against the long compatibility list.

Capacity and chemistry set the runtime ceiling

The 49Wh rating and lithium-ion chemistry define the maximum energy the pack can store. Runtime scales with the laptop's actual power draw, so heavy workloads will deplete the charge faster than light use. The smart chip manages charge cycles but cannot increase the physical capacity.

Highlights

  • 6-cell lithium-ion design delivers 4400mAh capacity for extended runtime
  • 1V output matches original Dell specifications for reliable compatibility
  • Replaces multiple Dell part numbers including 312-0746 and KM769
  • Built-in smart chip enables overheat and short-circuit protection
  • Fits Latitude E5400, E5410, E5500 and E5510 series laptops

Specifications

BrandDr. Battery
ModelMPL05221P-22
ColorBlack
TypeBattery
CompatibilityDell Latitude E5400 / E5400N / E5410 / E5500 / E5500 N-Series / E5510
Original Battery Part Number :
312-0746 / 312-0762 / 312-0769 / 312-0902 / A2990667 / KM668 / KM742 / KM752 / KM760 / KM769 / KM771 / KM970 / MT186 / MT187 / MT193 / MT196 / MT332 / P858D / PP32 / PP32LA / PP32LB / PW249 / PW640 / PW649 / PW651 / RM649 / RM656 / RM661 / RM668 / RM680 / T749D / U116D / U725H / W071D / W701D / WU841 / WU843 / WU852 / X064D / X644H / Y568H
Battery Type6 Cell Lithium-Ion
Battery Voltage11.1V
Battery Capacity4400mAh / 49Wh

Questions about this item

How can I confirm the battery is working after installing it in my Dell Latitude E5400?

The laptop should power on and show the battery charging icon; the built-in smart control chip manages charging and provides short-circuit, overheat and overload protection during use.

What comes with the Dr. Battery MPL05221P-22 and what must I buy separately?

The package includes the 6-cell 11.1V 4400mAh lithium-ion battery; no installation tools, screws or cables are included.

Which battery version matches my Dell Latitude E5510 original part number 312-0769?

This model replaces Dell part numbers including 312-0769, 312-0746, 312-0762, KM668, KM742, KM769 and others listed for Latitude E5400, E5410, E5500 and E5510 series.

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