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

FOCUSTEC

FOCUSTEC BP02XL 41Wh 2 Cell laptop battery

SKU CH-85MC-NZ7M3

A 41 Wh lithium-ion replacement battery for HP Pavilion 15-AU and 15-AW series laptops

  • Battery TypeLithium-Ion
  • 41Wh capacity powers extended work sessions
  • 2-cell lithium-ion design keeps weight low
  • 7V output matches original HP specifications
  • Replaces BP02XL, 849909-850 and HSTNN-UB7B part numbers
  • Fits HP Pavilion 15-AU and 15-AW series models

Compatible HP Pavilion 15 Models

This FOCUSTEC BP02XL lithium-ion battery is built for HP Pavilion 15-AU and 15-AW series notebooks. It matches the original 7.7 V, 41 Wh specification and fits the listed part numbers including 849909-850 and HSTNN-UB7B. Owners of those machines can restore mobile runtime with a direct-replacement pack.

Thermals and Power Behaviour

The two-cell design operates at the factory voltage so thermal output stays within the laptop's original cooling envelope. No extra fan spin-up or chassis warmth is introduced during typical office or browsing loads. Power draw follows the host system's normal charge curve without stressing the onboard regulator.

Upgrade Context and Limits

This pack replaces a depleted or ageing BP02XL unit in the compatible Pavilion models listed above. It does not add capacity beyond the stock 41 Wh rating, so users needing longer unplugged time will not gain extra hours. The jump is worthwhile only when the original cell no longer holds a useful charge.

Highlights

  • 41Wh capacity powers extended work sessions
  • 2-cell lithium-ion design keeps weight low
  • 7V output matches original HP specifications
  • Replaces BP02XL, 849909-850 and HSTNN-UB7B part numbers
  • Fits HP Pavilion 15-AU and 15-AW series models

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the BP02XL battery in my HP Pavilion 15-AU series laptop and what step is often missed?

Power off the laptop, remove the bottom case screws, disconnect the old battery connector, fit the new 2-cell 41Wh pack, reconnect the cable, replace the case and screws, then charge to 100% before first use — many forget the initial full charge.

What maintenance or replacement will the BP02XL need over its lifespan?

The lithium-ion pack is rated for about 500 recharge cycles; after that capacity drops noticeably and the battery should be replaced.

What limit appears first during sustained heavy use of the BP02XL?

The 41Wh capacity and 7.7V voltage set the runtime ceiling; under continuous load the pack will deplete before any thermal throttle occurs.

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