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Black rectangular laptop battery with connector and label

FOCUSTEC

FOCUSTEC HT03XL 11.55V 41.9Wh 3-cell laptop battery

SKU CH-C57P-JY6BQ

An 11.55V 41.9Wh 3-cell lithium-ion battery compatible with HP Pavilion 14, 15 and 17 series laptops, supplied with two screwdrivers

  • Battery TypeLithium-Ion
  • 9 Wh capacity supports longer unplugged sessions
  • 3-cell lithium-ion design keeps weight low
  • 55 V output matches original power requirements
  • CE, FCC and RoHS certified for safety compliance
  • Two included screwdrivers simplify installation

Replacement battery for HP Pavilion series

The FOCUSTEC HT03XL is a 11.55V lithium-ion pack rated at 41.9Wh and 3470mAh across three cells. It matches part numbers such as L11119-855 and HSTNN-LB8M and fits numerous Pavilion 14, 15 and 17 models including the 14-CE, 14-CF, 15-DA and 17-BY families. The unit ships new in black with two screwdrivers included and carries CE, FCC and RoHS certification.

Steady discharge for everyday workloads

Under continuous use the three-cell design delivers a stable 11.55V output without the voltage sag seen in smaller packs. The 41.9Wh capacity supports typical office tasks, web browsing and video playback for extended periods before recharge is required. Intelligent detection circuitry protects against over-charge, over-discharge and short circuits during sustained operation.

Straightforward swap with supplied tools

Installation involves removing the bottom case screws, disconnecting the old pack and connecting the new one using the same connector layout. The two included screwdrivers cover the common fastener types found on the compatible models. The main risk is forgetting to detach the internal battery cable before lifting the motherboard, which can damage the connector or flex cable.

Highlights

  • 9 Wh capacity supports longer unplugged sessions
  • 3-cell lithium-ion design keeps weight low
  • 55 V output matches original power requirements
  • CE, FCC and RoHS certified for safety compliance
  • Two included screwdrivers simplify installation

Specifications

Battery TypeLithium-Ion

Questions about this item

How much heat or noise does the 11.55V 41.9Wh Li-ion pack produce during all-day use?

The battery itself generates no noise and negligible heat; any warmth comes from the laptop's own charging circuit.

Which HP models and part numbers must I already own for the HT03XL to fit and work?

It replaces HT03XL, L11119-855, HSTNN-LB8M and other listed part numbers in Pavilion 14-CE, 14-CF, 14-CK, 14-CM, 14-DF, 14-MA, 14Q-CS, 14Q-CY, 14S-CF, 14S-CR, 15-CS, 15-CW, 15-DA, 15-DB, 15G-DR, 15T-DA, 15T-DB, 17-BY and 17-CA series.

Will this 3-cell 3470mAh pack run correctly alongside the original charger and motherboard in my older Pavilion 15-DA or 17-BY?

Yes, it matches the factory 11.55V specification and is certified to work as the original part in those models.

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