We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular 6 cell lithium ion laptop battery with label showing model MPL03243P-09

Dr. Battery

Dr. Battery MPL03243P-09 6 cell 4400 mAh 10.8 V laptop battery

SKU CH-ESRS-NG59M

6-cell lithium-ion replacement battery delivering 10.8 V and 4400 mAh for compatible Asus U33, U42, U43, U52 and U53 series laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityAsus U33 / U33J / U33Jc / U33JT / U42 / U42F / U42J / U42JC
  • Battery Type6 Cell Lithium-Ion
  • Battery Voltage10.8V
  • Battery Capacity4400 mAh
  • Dr. Battery trusted brand since 2006
  • 6-cell lithium-ion design delivers reliable power
  • 4400 mAh capacity supports extended mobile use
  • 8 V output matches OEM specifications
  • Smart control chip enables faster charging and protection

Dr. Battery MPL03243P-09 6-cell replacement

This new 6-cell lithium-ion battery replaces the original power pack in compatible Asus U33, U42, U43, U52 and U53 series notebooks. It delivers 10.8 V and 4400 mAh capacity for restored mobile runtime. The pack includes a smart control chip that manages charging, discharge and safety protections.

Upgrade from a depleted or failing original pack

When the factory battery no longer holds a useful charge or shows swelling, this 48 Wh unit restores full portable operation. The jump is worth it if your laptop now tethers to a wall outlet or shuts down under load. It is not for buyers who need higher capacity than 4400 mAh or a different voltage.

Verify model, original part number

Match your laptop model against the listed Asus U33, U42, U43, U52 and U53 series and confirm the original battery part number matches A31-U53, A32-U53, A41-U53 or A42-U53. Check that the original battery is rated 10.8 V and uses a 6-cell lithium-ion layout.

Highlights

  • Dr. Battery trusted brand since 2006
  • 6-cell lithium-ion design delivers reliable power
  • 4400 mAh capacity supports extended mobile use
  • 8 V output matches OEM specifications
  • Smart control chip enables faster charging and protection

Specifications

BrandDr. Battery
ModelMPL03243P-09
ColorBlack
TypeBattery
CompatibilityAsus 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
Battery Type6 Cell Lithium-Ion
Battery Voltage10.8V
Battery Capacity4400 mAh

Questions about this item

What laptop models does this 6-cell 4400 mAh battery fit?

It replaces Asus A31-U53, A32-U53, A41-U53 and A42-U53 packs and fits U33, U42, U43, U52 and U53 series laptops.

What is the correct way to install the battery and what step do people often miss?

Power off the laptop, unplug the AC adapter, slide the release latch, insert the pack until it clicks, then charge fully before first use; many skip the initial full charge.

What replacement will this Dr. Battery pack need over time?

The lithium-ion cells degrade with cycles; after several years the pack will hold less charge and should be replaced with another 10.8 V 4400 mAh unit.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.