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Rectangular black lithium polymer laptop battery with connector pins

Cameron & Co

Cameron & Co DS-CS-AUX512NB laptop battery 4.05 Ah black

SKU CH-T9AK-FV6VS

Replacement lithium-polymer battery delivers 4.05 Ah capacity for compatible Asus VivoBook 15 and X712 series laptops

  • TypeBattery
  • Compatible with many Asus VivoBook 15 models
  • Lithium-polymer chemistry delivers reliable power
  • 05 Ah capacity supports extended runtime
  • Black finish matches laptop aesthetics
  • Replaces original battery part numbers B21N1818 and B21N1818-3

Compatible Asus VivoBook models

This Cameron & Co DS-CS-AUX512NB battery fits a wide range of Asus VivoBook 15 laptops including the X512 and X712 series. It replaces original packs such as the B21N1818 and B21Bn2H used across many sub-models. The black lithium-polymer unit is supplied new and ready for installation.

Sustained capacity and chemistry

The 4.05 Ah lithium-polymer cell delivers steady energy output during long work sessions rather than only brief peaks. Its chemistry resists voltage sag under continuous load, helping the laptop maintain performance through extended use. No additional power-management features are described in the data.

Check your exact model number

Before ordering, verify that your laptop model appears in the compatibility list such as X512DA, X512FA, X512FB or X712FA variants. Confirm the original battery part number matches B21N1818 or the related codes listed. This pack is not suitable for Asus series outside the named VivoBook 15 family.

Highlights

  • Compatible with many Asus VivoBook 15 models
  • Lithium-polymer chemistry delivers reliable power
  • 05 Ah capacity supports extended runtime
  • Black finish matches laptop aesthetics
  • Replaces original battery part numbers B21N1818 and B21N1818-3

Specifications

BrandCameron Sino
ModelDS-CS-AUX512NB
TypeBattery

Questions about this item

Does the DS-CS-AUX512NB run hot or make noise when the VivoBook 15 is used all day?

The Li-Polymer cell produces no fan noise and stays cool under normal load because it has no moving parts.

What must I already own for this 4.05 Ah pack to work in my laptop?

You need a compatible Asus VivoBook 15 such as the X512DA, X512FA or X512FB series that accepts the B21N1818 form factor.

Will the DS-CS-AUX512NB fit my older X512UA-BQ448T alongside the original charger?

Yes, the battery replaces the B21N1818 unit in the X512UA-BQ448T and works with the existing Asus AC adapter.

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