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Rectangular black lithium-ion laptop battery with connector pins visible

KingSener

KingSener C4K9V laptop battery 55WH 7.4V for Dell XPS 13 321 322 XPS 12 221

SKU CH-JXX3-2F9R1 MPN C4K9V

A 55 Wh, 7.4 V lithium-ion replacement battery compatible with Dell XPS 13 321, 322 and XPS 12 221 models

  • Battery Voltage7.4V
  • Battery Capacity55WH
  • 55 Wh capacity extends runtime on compatible Dell XPS models
  • 4 V lithium-ion cells deliver stable power output
  • Replaces Dell part numbers Y9N00, PKH18, 489XN, 3H76R
  • Brand-new condition with one-year supplier warranty
  • Fits XPS 13 321, 322 and XPS 12 221 without modification

55 Wh 7.4 V replacement battery

This 55 Wh lithium-ion battery operates at 7.4 V and is built as a direct replacement for the original Dell unit. It uses KingSener cells and PCB designed to meet the full design capacity without false rating. The pack matches the original dimensions so installation requires no modification. It is supplied new and ready for use in compatible Dell XPS models.

Compatible Dell XPS 13 and XPS 12 models

The battery fits Dell XPS 13 models 321 and 322 as well as XPS 12 model 221, covering part numbers such as Y9N00, PKH18, 489XN, 3H76R, 9Q23, 9Q33 and 9333. It is not suitable for other Dell series or for laptops that require a different voltage or connector layout. Buyers needing a higher capacity pack or a different form factor should look elsewhere.

55 Wh capacity at 7.4 V

The single specification that determines fit is the 55 Wh capacity combined with the 7.4 V output. If the original battery shows the same watt-hour rating and voltage this replacement will match the runtime and power delivery of the factory unit. A different watt-hour or voltage value means the part is not compatible.

Highlights

  • 55 Wh capacity extends runtime on compatible Dell XPS models
  • 4 V lithium-ion cells deliver stable power output
  • Replaces Dell part numbers Y9N00, PKH18, 489XN, 3H76R
  • Brand-new condition with one-year supplier warranty
  • Fits XPS 13 321, 322 and XPS 12 221 without modification

Specifications

BrandKingSener
ModelC4K9V
Part NumberY9N00 C4K9V PKH18 489XN 3H76R
Battery Voltage7.4V
Battery Capacity55WH

Questions about this item

What is included with the KingSener C4K9V battery and is any tool or cable sold separately?

The package contains the 55WH 7.4V Li-ion replacement battery only; no tools, screws or cables are supplied.

Which part number matches my Dell XPS 13 321 or XPS 12 221 — Y9N00, PKH18, 489XN or 3H76R?

All listed part numbers (Y9N00, PKH18, 489XN, 3H76R) refer to the same C4K9V battery; choose the one printed on your original battery.

What does the 55WH rating mean for daily runtime on an XPS 13 322?

The 55WH capacity restores the original design capacity, giving comparable run time to a new factory battery under the same workload.

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