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Rectangular black lithium-ion laptop battery, 42Wh 15.5V

E-buy

E-buy C31N1806 42Wh laptop battery for VivoBook S13 S330FA-EY001T

SKU CH-QC15-K4R3B

A 42Wh lithium-ion replacement battery for VivoBook S13 and X330UA series laptops

  • Battery TypeLithium-Ion
  • 42Wh capacity keeps your VivoBook S13 running longer
  • 5V lithium-ion cell matches original voltage spec
  • Direct replacement for C31N1806 and 3ICP5/58/57 part numbers
  • Fits multiple S330FA and X330UA model variants
  • New battery restores full runtime without adapter tether

Exact Model Match

This replacement battery is built for the VivoBook S13 S330FA series and the ADOL13F X330UA line. It restores full mobility to notebooks that originally shipped with the C31N1806 or 3ICP5/58/57 pack. Buyers with other chassis or different part numbers will need a different unit.

42Wh at 15.5V

The cell delivers 42Wh and 3550mAh at 15.5V, matching the factory voltage and capacity exactly. A different voltage or a lower watt-hour rating will cause charging errors or reduced runtime, so this single figure decides whether the part fits the power circuit.

Straightforward Swap

The pack sits in the standard internal bay and connects with the original cable, so no soldering or adapter is required. The most common issue is forgetting to disconnect the old pack before removing screws, which can short the motherboard. A careful, powered-down swap avoids that risk.

Highlights

  • 42Wh capacity keeps your VivoBook S13 running longer
  • 5V lithium-ion cell matches original voltage spec
  • Direct replacement for C31N1806 and 3ICP5/58/57 part numbers
  • Fits multiple S330FA and X330UA model variants
  • New battery restores full runtime without adapter tether

Specifications

Battery TypeLithium-Ion

Questions about this item

How long will the 42Wh rating actually run my VivoBook S13 S330FA-EY001T?

The 42Wh capacity at 15.5V delivers 3550mAh, giving typical office use several hours per full charge depending on screen brightness and workload.

Does the 15.5V lithium-ion pack use the same connector and pin-out as the original C31N1806?

Yes, it is built to the C31N1806 and 3ICP5/58/57 specification, so the voltage and connector match the factory battery exactly.

Will this black 42Wh unit fit inside the chassis of an ADOL13F X330UA series laptop?

It is listed as compatible with the ADOL13F X330UA series and all listed VivoBook S13 models, so it mounts in the original battery bay without modification.

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