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Rectangular black laptop battery with label showing model numbers

PISKEKAT

PISKEKAT BI03XL ON03XL 41.7Wh 11.55V laptop battery

SKU CH-T8X7-JVAXP

A 41.7Wh 11.55V Li-ion replacement battery with three cells for HP Stream 14-ax and Pavilion X360 13-u series laptops

  • Battery TypeLaptop Batteries
  • 7Wh capacity supports extended mobile use
  • 55V Li-ion chemistry matches original power specifications
  • Three-cell design balances runtime with lightweight portability
  • Compatible with HP Stream 14-ax and Pavilion X360 13-u series laptops
  • Replaces multiple OEM part numbers including BI03XL and HSTNN-UB6W

What this battery replaces

This PISKEKAT BI03XL ON03XL unit replaces the original 41.7Wh 11.55V battery in HP Stream 14-ax000 and Pavilion X360 13-u000 series laptops. It matches part numbers BI03XL, ON03XL, HSTNN-UB6W and HSTNN-LB7P among others. The jump is worth it when the original pack no longer holds a charge or shuts down under load.

Installation notes

Installation requires opening the chassis and disconnecting the old pack before fitting the three-cell replacement. Ensure the connector aligns correctly and screws are secured to avoid loose contact. Buyers who need a higher capacity than 41.7Wh or a different voltage should look elsewhere.

Highlights

  • 7Wh capacity supports extended mobile use
  • 55V Li-ion chemistry matches original power specifications
  • Three-cell design balances runtime with lightweight portability
  • Compatible with HP Stream 14-ax and Pavilion X360 13-u series laptops
  • Replaces multiple OEM part numbers including BI03XL and HSTNN-UB6W

Specifications

Battery TypeLaptop Batteries

Questions about this item

What are the exact dimensions or form factor of the BI03XL battery so I can confirm it fits my HP Stream 14-ax000 series laptop?

The BI03XL is built to match the original HP form factor for the Stream 14-ax000 and Pavilion X360 13-u000 series, using the same mounting points as part numbers HSTNN-UB6W and HSTNN-LB7P.

How do I install this 11.55V 41.7Wh battery, and which step do people often get wrong?

Remove the bottom case screws, disconnect the old battery cable from the motherboard before lifting it out, then connect the new battery cable firmly before refitting the case — the step often missed is unplugging the old battery first.

When will the 3-cell Li-ion pack need replacing, and what part numbers should I search for?

Replace the pack when runtime becomes too short for your needs; search for BI03XL, ON03XL, HSTNN-UB6W, HSTNN-LB7P, TPN-W118, 843537-421, 843537-541, 915230-541, 844203-850, 844203-855 or 915486-855.

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