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Black rectangular laptop battery with label visible

Cameron & Co

Cameron & Co DS-CS-AUX540NB laptop battery 2.2 Ah black

SKU CH-TZS5-TVZ4D

Replacement lithium-ion battery rated at 2.2 Ah for a wide range of Asus laptops

  • TypeBattery
  • Compatible with many Asus laptop models
  • Lithium-ion chemistry provides reliable portable power
  • 2 Ah capacity supports extended unplugged use
  • Black finish matches original equipment appearance
  • New condition ensures full rated performance

Replacement Battery for Asus X540 Series

This lithium-ion battery replaces the original A31N1519 unit in compatible Asus X540, F540, R540, K540 and A540 models. It supplies 2.2 Ah capacity for everyday office work, study sessions or light media use. The black casing matches the standard laptop chassis colour. Buyers who need higher capacity for extended off-grid use should look elsewhere.

Direct-Fit Lithium-Ion Construction

The pack uses a Li-ion cell layout shaped to the factory battery bay, so it seats without adapters or case modification. Connectors align with the motherboard header for a secure click-fit. No soldering or cable routing is required during installation. Builders who want a modular hot-swap design will not find it here.

Upgrade from Degraded Original Cells

This unit restores runtime lost to aging factory batteries that no longer hold a full charge. The 2.2 Ah rating matches the OEM specification for direct compatibility. The jump is worth it when the laptop shuts down early or throttles on battery power. Users expecting a runtime increase beyond stock specifications will not see one.

Highlights

  • Compatible with many Asus laptop models
  • Lithium-ion chemistry provides reliable portable power
  • 2 Ah capacity supports extended unplugged use
  • Black finish matches original equipment appearance
  • New condition ensures full rated performance

Specifications

BrandCameron Sino
ModelDS-CS-AUX540NB
TypeBattery

Questions about this item

Does the DS-CS-AUX540NB use the same connector as the original Asus A31N1519 battery?

Yes, the Cameron Sino DS-CS-AUX540NB is built to match the Asus A31N1519 pin layout and keying, so it plugs directly into the motherboard socket without an adapter.

Will this battery sit flush in an Asus X540SA chassis without a spacer?

The pack follows the X540 series footprint and screw-hole spacing, so it seats flush in the standard battery bay and the original retention screws line up.

What is the first step when fitting the DS-CS-AUX540NB, and where do people go wrong?

Power off the laptop, unplug the AC adapter and remove the bottom cover screws; the common mistake is forgetting to disconnect the old battery cable before lifting the pack out.

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