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Rectangular black lithium-polymer laptop battery with connector port

E-buy

E-buy 42Wh C42N1839 laptop battery for Asus Zenbook 15 UX533FD UX534FA

SKU CH-3BSP-AEHVX

A 42 Wh lithium-polymer replacement battery at 7.7 V fits Asus Zenbook 15 UX533FD and UX534FA models

  • TypeBattery
  • Battery TypeLaptop Batteries
  • 42 Wh capacity powers the ZenBook 15 through a full workday
  • 7 V lithium-polymer chemistry keeps voltage stable under load
  • 6166 mAh rating stores more energy than the original 42 Wh spec
  • Replaces part C42N1839 for a direct fit in UX533FD and UX534FA
  • Brand-new condition means zero cycles and full capacity from day one

Direct replacement for Asus Zenbook 15

This 42Wh lithium-polymer pack replaces the original C42N1839 cell in Asus Zenbook 15 UX533FD and UX534FA chassis. It delivers 7.7V and 6166mAh in a black housing that matches the factory form factor. The unit ships new and ready to install without extra cables or adapters.

Suits owners of listed 15-inch Zenbooks needing

Buyers with other Asus series, different screen diagonals, or alternative part numbers cannot use this pack. It also does not serve systems that require a higher watt-hour rating or a different voltage rail. Verify the exact model code before ordering.

42Wh capacity at 7.7V determines fit

The 47Wh/6166mAh rating printed on the label is the decisive figure for runtime and physical compatibility. Only models that specify the C42N1839 part number will accept this battery mechanically and electrically.

Highlights

  • 42 Wh capacity powers the ZenBook 15 through a full workday
  • 7 V lithium-polymer chemistry keeps voltage stable under load
  • 6166 mAh rating stores more energy than the original 42 Wh spec
  • Replaces part C42N1839 for a direct fit in UX533FD and UX534FA
  • Brand-new condition means zero cycles and full capacity from day one

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

Does the 42Wh C42N1839 battery fit the 15-inch chassis of the Zenbook 15 UX533FD?

Yes, the replacement part number C42N1839 matches the Zenbook 15 UX533FD and UX534FA models listed in the fitment data.

What step is often missed when installing the Li-polymer 7.7V pack in the Zenbook 15?

After placing the battery, reconnect the internal cable firmly and secure any retaining screws before closing the base cover.

When should the 47Wh 6166mAh Li-polymer unit be replaced in the Zenbook 15 UX534FA?

Replace it when runtime drops noticeably or the system reports a significant loss of design capacity.

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