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Rectangular silver lithium-polymer laptop battery, two-cell, 45Wh 3950mAh 11.4V

NShi

NShi AA-PBUN3QB 45Wh 3950mAh 11.4V laptop battery

SKU CH-HXCW-6FB3N MPN AA-PBUN3QB

A 45 Wh lithium-polymer replacement battery rated at 11.4 V and 3950 mAh for compatible Samsung laptops

  • Battery TypeLithium Polymer
  • 45Wh capacity powers compatible Samsung laptops through a full workday
  • 4V 3950mAh lithium-polymer cell matches original voltage and runtime specs
  • Replaces AA-PBUN3AB and 1588-3366 for direct drop-in installation
  • CE UL FCC RoHS certified with built-in circuit protection for safe charging
  • Tested beyond 500 recharge cycles for long-term reliability

Replacement battery for Samsung notebooks

The NShi AA-PBUN3QB is a 45Wh lithium-polymer pack rated at 11.4V and 3950mAh across two cells. It replaces Samsung part numbers AA-PBUN3QB, AA-PBUN3AB and 1588-3366 and fits a wide range of NP530, NP550, 7 Spin, NP740, Odyssey and NT500 series models. The unit is supplied new and carries CE, UL, FCC and RoHS safety certifications.

Who this suits and who should look elsewhere

This battery suits owners of the listed Samsung laptops who need a direct voltage and capacity match for the original pack. It is not for users whose device requires a different voltage, cell count or connector layout, nor for buyers who want more capacity than 45Wh.

What the bundle changes

The package contains only the battery itself; no tools, screws or additional cables are included. Installation relies on the original charger and the laptop’s existing back cover hardware. Built-in circuit protection and a rated life of over 500 recharge cycles provide the same safety and longevity expectations as the factory unit.

Highlights

  • 45Wh capacity powers compatible Samsung laptops through a full workday
  • 4V 3950mAh lithium-polymer cell matches original voltage and runtime specs
  • Replaces AA-PBUN3AB and 1588-3366 for direct drop-in installation
  • CE UL FCC RoHS certified with built-in circuit protection for safe charging
  • Tested beyond 500 recharge cycles for long-term reliability

Specifications

Battery TypeLithium Polymer

Questions about this item

Does the AA-PBUN3QB need any extra cable or bracket beyond what my Samsung laptop already has?

No extra parts are required; the battery connects directly to the existing motherboard connector inside the laptop.

Will this 11.4 V, 45 Wh pack work in an older Samsung model such as the NP530E5M that originally used the AA-PBUN3AB?

Yes, the AA-PBUN3QB replaces the AA-PBUN3AB and is listed for the NP530E5M series among other models.

How can I confirm the battery is functioning correctly after I install it?

The laptop should recognise the pack immediately, show a charge percentage in the OS, and run on battery power without the charger attached.

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