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Rectangular black lithium-ion laptop battery with six cells and connector pins

TOPKTEAM

TOPKTEAM TT03XL 11.55V 56Wh laptop battery

SKU CH-28A5-0X8J5

Replacement lithium-ion battery delivering 11.55 V and 56 Wh for compatible HP ZBook and EliteBook models

  • Battery TypeLithium-Ion
  • 55V lithium-ion chemistry delivers stable power for demanding workloads
  • 56Wh capacity extends runtime between charges on compatible HP systems
  • Six cells provide balanced energy density and thermal performance
  • Genuine replacement matches HP part 933322-855 for direct fit
  • Fits EliteBook 850 G5 and ZBook 15U G5 G536 G541 G542 G544 models

Genuine HP ZBook 15U G5 replacement

This new TOPKTEAM TT03XL lithium-ion battery delivers 11.55V and 56Wh capacity across six cells. It is built for professionals who need a direct replacement for the original HP 933322-855 power source in compatible ZBook mobile workstations.

Verify part number and model match

Confirm that your device appears on the compatibility list covering EliteBook 850 G5 and ZBook 15U G5, G536, G541, G542 and G544 variants. Cross-reference the existing battery part number against TT03XL before ordering to ensure correct fit and electrical specification.

Steady output through long work sessions

The 56Wh lithium-ion pack maintains stable 11.55V delivery during extended compile, render or field-test workloads rather than only brief peaks. Six-cell construction supports consistent runtime so the workstation stays powered through full-day mobile use without sudden voltage sag.

Highlights

  • 55V lithium-ion chemistry delivers stable power for demanding workloads
  • 56Wh capacity extends runtime between charges on compatible HP systems
  • Six cells provide balanced energy density and thermal performance
  • Genuine replacement matches HP part 933322-855 for direct fit
  • Fits EliteBook 850 G5 and ZBook 15U G5 G536 G541 G542 G544 models

Specifications

Battery TypeLithium-Ion

Questions about this item

Does the package contain only the battery or are screws and tools included?

The box contains the 11.55V 56Wh lithium-ion battery with six cells; mounting screws and any opening tools must be sourced separately.

My service tag shows ZBook 15U G536 — is this the correct replacement?

Yes, the TT03XL is listed for ZBook 15U G536, G541, G542, G544 and EliteBook 850 G5, matching part number 933322-855.

Will the 56Wh rating give me the same runtime as the original pack?

The 56Wh capacity matches the factory specification for the compatible models, so runtime should be equivalent to a new original battery.

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