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Black rectangular laptop battery with four cells and model label

ARCTIC

ARCTIC BTY-M55 90Wh 2 in 1 accessory

SKU CH-BBAW-6DN0R MPN BTY-M55

A 90Wh 15.4V four-cell replacement battery for MSI Crosshair and Alpha laptops

  • 90Wh capacity powers extended work sessions
  • 4V 5845mAh 4-cell design matches original specs
  • Replaces BTY-M55 925QA055H 4ICP5/63/133 part numbers
  • Compatible with MSI Alpha 15 17 Crosshair 15 17 Pulse GL66 Sword 15 series
  • Brand new condition ensures full rated performance

90Wh replacement battery for MSI laptops

This 90Wh battery replaces part numbers BTY-M55, 925QA055H and 4ICP5/63/133 in compatible MSI Alpha, Crosshair, Pulse and Sword models. It suits owners of listed 15-inch and 17-inch systems who need a direct-fit power source. Builders working on other brands or unlisted MSI chassis cannot use this unit.

Sustained capacity at 15.4V

The 4-cell pack delivers 5845mAh at a nominal 15.4V, maintaining voltage steadily during extended work sessions rather than only in short bursts. Users running demanding applications will see consistent output until the charge is depleted. Systems requiring a different voltage or cell count are not supported.

4-cell form-factor limit

The physical 4-cell design fixes the energy storage at 90Wh, so runtime cannot be expanded without replacing the entire battery. Laptops that demand a higher-capacity 6-cell or 8-cell pack will not accept this unit. No firmware or software adjustment can overcome this hardware constraint.

Highlights

  • 90Wh capacity powers extended work sessions
  • 4V 5845mAh 4-cell design matches original specs
  • Replaces BTY-M55 925QA055H 4ICP5/63/133 part numbers
  • Compatible with MSI Alpha 15 17 Crosshair 15 17 Pulse GL66 Sword 15 series
  • Brand new condition ensures full rated performance

Specifications

No published specifications for this item yet.

Questions about this item

Does the BTY-M55 battery run hot or draw extra power during long sessions?

The 15.4V 90Wh 4-cell pack matches the original voltage and capacity, so thermal load and power draw stay identical to the factory battery.

What must I already own for the BTY-M55 to work?

A compatible MSI laptop such as Alpha 15 B5EEK, Crosshair 15 B12UGZ or Crosshair 17 B12UGSZ that uses part numbers BTY-M55, 925QA055H or 4ICP5/63/133.

Will the BTY-M55 fit my older MSI Alpha 15 A3DDK alongside newer Crosshair models?

Yes, the battery replaces BTY-M55 in Alpha 15 A3DDK, Alpha 17 B5EEK, Pulse GL66 12UGK and Sword 15 A11UG series as well as the listed Crosshair models.

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