We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black lithium-polymer laptop battery, model C31N1620

POWER-FENG

POWER-FENG 50Wh C31N1620 laptop battery for Asus UX430 UX430UQ U4100UQ Pro PU404 PU404UF

SKU CH-0JDP-NRWS9

50 Wh lithium-polymer replacement battery for Asus UX430, UX430UQ, U4100UQ and PU404 models

  • TypeBattery
  • Battery TypeLaptop Batteries
  • 50 Wh capacity powers long work sessions
  • 55 V lithium-polymer chemistry matches original specs
  • 4335 mAh rating delivers reliable daily runtime
  • Replaces Asus part C31N1620 for exact fit
  • Compatible with UX430, UX430UQ, U4100UQ and PU404 models

Replacement battery for Asus UX430 series

The POWER-FENG C31N1620 is a new lithium-polymer battery built for Asus UX430, UX430UQ, U4100U and U4100UQ models. It restores original runtime for owners of these ultraportables who need a direct swap without modification.

50 Wh capacity and 11.55 V output

Rated at 50 Wh and 4335 mAh, the pack delivers the same voltage and energy the factory unit supplied for daily office work and media playback. Heavy multi-tasking or sustained loads will drain it faster, so users who regularly push the CPU should expect shorter unplugged sessions.

Black finish matches the chassis

The black casing blends with the laptop’s existing colour scheme and requires no extra cables, drivers or calibration software. Installation is a simple mechanical exchange; buyers who want an extended-capacity option or a different voltage will need a different part.

Highlights

  • 50 Wh capacity powers long work sessions
  • 55 V lithium-polymer chemistry matches original specs
  • 4335 mAh rating delivers reliable daily runtime
  • Replaces Asus part C31N1620 for exact fit
  • Compatible with UX430, UX430UQ, U4100UQ and PU404 models

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

Will the 11.55V 50Wh C31N1620 battery fit my Asus UX430UQ without any chassis modifications?

Yes, this battery is built to the C31N1620 specification and matches the original 11.55V 50Wh form factor used in the UX430UQ and UX430U, so it installs directly into the existing bay.

How can I confirm the 4335mAh Li-polymer pack is delivering its rated capacity after installation?

Charge the battery to 100%, then run a full discharge cycle in the OS battery report or a tool like BatteryInfoView; a healthy pack should show a design capacity near 4335mAh and a full-charge capacity close to that figure.

Does the package include the C31N1620 battery only, or are tools and adhesive strips supplied for the U4100UQ and PU404UF models?

The box contains the replacement battery itself; opening tools and any required adhesive strips for the U4100UQ or PU404UF chassis are not included and must be sourced separately.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.