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Rectangular black lithium-ion laptop battery, 11.5V 66Wh

Beisite

Beisite AA-PBTN6QB 11.5V 66Wh laptop battery

SKU CH-FGGY-TAAEF

11.5 V 66 Wh lithium-ion replacement battery for Samsung Notebook 9 NP900X5N series laptops

  • ColorBlack
  • TypeBattery
  • Compatibilityfor Notebook 9 NP900X5N NP900X5N-X01USSeries
  • Battery TypeLithium-Ion
  • Battery Voltage11.5V
  • Battery Capacity66Wh
  • Reliable power for Notebook 9 NP900X5N series
  • 5 V 66 Wh lithium-ion cell matches original rating
  • Replaces AA-PBTN6QB and 31CP5/40/88-2 part numbers
  • Fits NP900X5N-X01US, NP900X5N-L01US and NP900X5N-K03 models
  • Brand-new condition with 12-month coverage

Replacement Battery for Notebook 9 NP900X5N

This 11.5 V lithium-ion pack delivers 66 Wh of capacity and matches the original AA-PBTN6QB and 31CP5/40/88-2 part numbers. It fits the Notebook 9 NP900X5N series including the NP900X5N-X01US, NP900X5N-L01US and NP900X5N-K03 models. The battery ships new in black and includes a 12-month warranty.

Upgrade from a depleted original cell

When the factory battery no longer holds a useful charge, this direct replacement restores the notebook’s rated runtime without modification. The jump is worth it if the laptop otherwise meets your needs but shuts down early or cannot run unplugged. No adapter or firmware change is required for installation.

Suits owners of compatible Notebook 9 units

Buyers with a listed NP900X5N model gain a straightforward, drop-in power source. Users of other Samsung series or any non-listed chassis should look elsewhere, as the connector and form factor are specific to this family. The pack is not intended for devices that require a different voltage or capacity.

Highlights

  • Reliable power for Notebook 9 NP900X5N series
  • 5 V 66 Wh lithium-ion cell matches original rating
  • Replaces AA-PBTN6QB and 31CP5/40/88-2 part numbers
  • Fits NP900X5N-X01US, NP900X5N-L01US and NP900X5N-K03 models
  • Brand-new condition with 12-month coverage

Specifications

BrandAA-PBTN6QB
ModelAA-PBTN6QB
Part Number31CP5/40/88-2
ColorBlack
TypeBattery
Compatibilityfor Notebook 9 NP900X5N NP900X5N-X01USSeries
Battery TypeLithium-Ion
Battery Voltage11.5V
Battery Capacity66Wh

Questions about this item

Will the AA-PBTN6QB battery fit inside my Samsung Notebook 9 NP900X5N-X01US without modification?

The AA-PBTN6QB is listed as a direct replacement for the NP900X5N series including the X01US model, so it fits the existing battery bay with no changes required.

What is the correct order to connect the AA-PBTN6QB battery connector to the motherboard on the NP900X5N series?

Power off the laptop and disconnect the AC adapter, then attach the battery cable to the motherboard header before securing the battery with its screws; reversing the order can leave the connector partially seated.

How do I know when the AA-PBTN6QB 66Wh lithium-ion battery should be replaced?

Replace the battery when a full charge no longer powers the Notebook 9 for its usual runtime or when the operating system reports a significant capacity loss.

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