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Black rectangular laptop battery with six cells visible

Dr. Battery

Dr. Battery MPL03243P-02 6 Cell 10.8V 4400mAh laptop battery

SKU CH-JFK3-80307

Six-cell lithium-ion replacement battery delivering 10.8V and 4400mAh for compatible Asus U-series laptops

  • Battery type6 Cell Lithium-Ion
  • Battery voltage rating10.8 V
  • Battery capacity4,400 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withAsus U33 / U33J / U33Jc / U33JT / U42 / U42F / U42J / U42JC
  • 6-cell lithium-ion design delivers extended runtime
  • 8V 4400mAh capacity matches OEM specifications
  • Smart control chip enables quicker charging and longer discharge
  • Built-in protections guard against short circuit, overheat and overload
  • Compatible with Asus U33, U42, U43, U52 and U53 series

Compatible Asus U-Series Models

This Dr. Battery MPL03243P-02 replaces original packs in a wide range of Asus U33, U42, U43, U52 and U53 notebooks. It is a new 6-cell lithium-ion unit rated at 10.8V and 4400mAh for 48Wh of capacity. The black housing matches the original form factor for direct installation.

Built-In Protection Chip

A smart control chip manages charging to reduce power consumption and extend discharge time. It provides short-circuit, overheat and overload safeguards during use. The supplier has applied quality control since 2006 to meet OEM specification levels and backs the unit with a one-year warranty.

Verify Original Battery Before Ordering

Confirm your laptop model appears in the compatibility list and cross-reference the original battery part numbers such as A31-U53, A32-U53, A41-U53 or A42-U53. Check that the original output voltage is 10.8V to avoid a mismatch.

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 nameMPL03243P-02
Product colorBlack
Product typeBattery
Power
Battery type6 Cell Lithium-Ion
Battery voltage rating10.8 V
Battery capacity4,400 mAh
Compatibility
Compatible withAsus U33 / U33J / U33Jc / U33JT / U42 / U42F / U42J / U42JC / U42S / U42SD / U43 / U43F / U43J / U43Jc / U43S / U43SD / U43SV / U52 / U52F / U52J / U52Jc / U53 / U53F / U53J / U53Jc / U53S / U53SD / U53SV
Original Battery Part Number :
A31-U53 / A32-U53 / A41-U53 / A42-U53

Questions about this item

How many charge cycles can the 6-cell 4400 mAh lithium-ion pack sustain before capacity fades noticeably?

Lithium-ion packs of this type typically deliver several hundred full cycles before capacity drops noticeably, so a daily user can expect roughly two to three years of regular use.

What thermal or runtime limit appears first during continuous discharge at the 10.8 V 48 Wh rating?

The 4400 mAh capacity sets the runtime ceiling; under sustained load the pack will reach its discharge cut-off voltage before thermal protection activates.

Does the built-in smart control chip increase fan noise or surface temperature during all-day operation?

The protection chip manages charging and discharge currents without adding moving parts, so it does not create audible noise or measurable extra heat.

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