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Rectangular black laptop battery with label showing 56Wh 11.55V Li-ion

PISKEKAT

PISKEKAT TT03XL 56Wh 11.55V Li-ion laptop battery for HP EliteBook 755 G5 850 G5 G6 ZBook 15U G5 G6

SKU CH-CK9S-NR6R2

56Wh 11.55V Li-ion replacement battery for HP EliteBook 755 G5, 850 G5, 850 G6 and ZBook 15U G5, G6 models

  • Battery typeLaptop Batteries
  • 56Wh capacity delivers extended runtime
  • 55V Li-ion chemistry provides stable power
  • Replaces multiple HP part numbers including TT03XL
  • Fits EliteBook 755 G5 850 G5 G6 and ZBook 15U G5 G6
  • UL CE FCC RoHS certified with 500 charge cycles

Replacement battery for HP EliteBook and ZBook 15U

This 56Wh lithium-ion battery replaces the original TT03XL pack in HP EliteBook 755 G5, 850 G5, 850 G6 and ZBook 15U G5, G6 mobile workstations. It delivers 11.55V and 4850mAh from new cells with integrated circuit protection. UL, CE, FCC and RoHS certifications confirm safety compliance. Rated for up to 500 charge cycles over its service life.

56Wh capacity for typical business workloads

The 56Wh rating supports a full day of office applications, web browsing and video playback on compatible 15-inch EliteBook and ZBook models. Heavy multi-tasking, sustained GPU compute or maximum screen brightness will reduce runtime below the rated figure. The smart chip manages charge balance and low self-discharge during storage periods.

Direct swap for worn or failed TT03XL packs

This unit replaces HP part numbers including 932824-421, 933322-855, HSTNN-LB8H and HSTNN-DB8K without modification. The upgrade is worth it when the original battery no longer holds sufficient charge for mobile use or shows swelling. Not suitable for laptops outside the listed EliteBook 755, 850 and ZBook 15U series.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $40.99
Pricier than about 72% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLaptop Batteries

Questions about this item

Will this 56Wh 11.55V Li-ion battery work in my HP EliteBook 850 G5 alongside the original AC adapter?

Yes, the battery matches the original TT03XL 56Wh 11.55V specification and is compatible with the EliteBook 850 G5, so it will charge and run normally with your existing adapter.

How can I verify the battery is delivering its rated 4850mAh capacity after installation?

Use the HP Support Assistant or BIOS battery check to confirm the design capacity reads 56Wh and the cycle count starts near zero, indicating the smart chip is reporting correctly.

Does the package include the battery only, or are screws and tools also supplied?

The package contains the replacement battery unit only; you will need to reuse the existing screws and any plastic pry tools from your laptop to complete the installation.

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