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Rectangular black lithium-ion battery pack with label showing 7.6V 57Wh capacity

E-buy

E-buy AA-PBWN4AB 7.6V 57Wh laptop battery

SKU CH-WZXM-HWS7B

A 7.6V 57Wh lithium-ion replacement battery for Samsung NP530U4E, NP540U4E, NP730U3E, NP740U3E and NT530U4E ultrabooks

  • Battery TypeLithium-Ion
  • Extended runtime with 57Wh high-capacity lithium-ion cell
  • Premium cells rated for 500+ charge cycles
  • Built-in protection against overcharge, short circuit and overheating
  • Exact OEM fit for Samsung NP530, NP540, NP730, NP740 series
  • Replaces part numbers AA-PBWN4AB and BA43-00360A

Replacement Battery for Samsung Ultrabooks

This 7.6V 57Wh lithium-ion unit replaces the original AA-PBWN4AB or BA43-00360A pack in Samsung NP530U4E, NP540U4E, NP730U3E and NP740U3E series ultrabooks. It uses premium cells rated for 500-plus charge cycles and carries CE and RoHS certifications. The black housing matches the OEM form factor for an exact fit.

Compatibility Check Before Ordering

Verify the part number printed on your existing battery reads AA-PBWN4AB or BA43-00360A and confirm your model appears in the supported list including all regional variants. Most of these ultrabooks use an internal battery so consult the Samsung service manual for disassembly steps before purchasing. Power the laptop down completely before starting any replacement work.

Build Quality and Daily Use

Premium lithium-ion cells deliver extended runtime of 6-8 hours depending on workload while built-in circuitry guards against overcharge, short circuit and overheating. The pack ships brand new with a 12-month manufacturer warranty and a 30-day money-back guarantee. For best performance complete three full charge cycles after installation to calibrate the cells.

Highlights

  • Extended runtime with 57Wh high-capacity lithium-ion cell
  • Premium cells rated for 500+ charge cycles
  • Built-in protection against overcharge, short circuit and overheating
  • Exact OEM fit for Samsung NP530, NP540, NP730, NP740 series
  • Replaces part numbers AA-PBWN4AB and BA43-00360A

Specifications

Battery TypeLithium-Ion

Questions about this item

Does the package include any tools or cables for installing the AA-PBWN4AB battery?

The package includes 1 x AA-PBWN4AB replacement battery only; installation tools are not included.

How do I choose between the listed Samsung series like NP530U4E and NP740U3E for this 7.6V 57Wh battery?

Match your laptop's original battery part number to AA-PBWN4AB or BA43-00360A; the battery fits all listed variants.

What does the 57Wh rating mean for actual runtime in a Samsung ultrabook?

Expected runtime is 6-8 hours depending on usage; complete 3 full charge cycles initially for best performance.

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