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Rectangular black laptop battery with label showing model HT03XL and three cells

PISKEKAT

PISKEKAT HT03XL 11.55V 41.9Wh 3-cell laptop battery

SKU CH-WFY7-JQ4EK MPN HT03XL.

A 11.55 V, 41.9 Wh lithium-ion replacement battery with three cells for HP Pavilion 14 and 15 series laptops

  • Battery TypeLaptop Batteries
  • Ready for HP Pavilion 14 and 15 series
  • 9 Wh capacity keeps you working longer
  • 55 V three-cell lithium-ion design
  • Replaces over thirty original part numbers
  • Built new and tested for up to 600 charge cycles

Replacement battery for HP Pavilion 14 and 15 series

The PISKEKAT HT03XL is a new 3-cell lithium-ion battery rated at 11.55 V and 41.9 Wh (3630 mAh). It replaces part numbers such as HSTNN-LB8M, L11119-855 and L11421-542. The unit fits a wide range of HP Pavilion 14-CE, 14-CF, 14-CK, 14-DF and 15-CS models listed by the manufacturer.

Thermals noise and power in daily use

As an internal battery it produces no audible noise and adds no external heat source beyond normal cell operation during charge and discharge. The lithium-ion chemistry supports up to 600 recharge cycles over the life of the pack. Power draw follows the laptop's own management system without extra load.

Upgrading from a worn original pack

This battery restores full runtime when the original pack no longer holds charge or triggers replacement warnings. It is not suited for users who need a higher-capacity design than 41.9 Wh or a different voltage. Buyers whose laptops use a different part number should verify compatibility before ordering.

Highlights

  • Ready for HP Pavilion 14 and 15 series
  • 9 Wh capacity keeps you working longer
  • 55 V three-cell lithium-ion design
  • Replaces over thirty original part numbers
  • Built new and tested for up to 600 charge cycles

Specifications

Battery TypeLaptop Batteries

Questions about this item

How do I install the HT03XL battery in my HP Pavilion 14-CE, and which step do people often miss?

Power off the laptop and disconnect the AC adapter. Remove the base cover screws, then unplug the old battery connector from the motherboard before lifting it out. People often forget to disconnect the cable first and risk damaging the connector.

What maintenance or replacement will the 3-cell Li-ion 41.9Wh pack need later?

The pack is rated for up to 600 recharge cycles. After that, capacity drops below useful levels and the battery should be replaced. No user-serviceable cells exist inside; the whole unit is swapped when runtime becomes too short.

What limit appears first during sustained heavy use of this 11.55V battery?

The 3630mAh capacity sets the runtime ceiling. Under continuous high load the pack will reach its depth-of-discharge limit sooner than a higher-capacity unit, forcing a recharge or shutdown.

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