We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black laptop battery with label showing 11.55V 41.9Wh 3-cell

FOCUSTEC

FOCUSTEC HT03XL 41.9Wh 11.55V 3-cell laptop battery

SKU CH-5MQ2-AMN9D

A 41.9 Wh lithium-ion laptop battery with 3 cells and 500 recharge cycles, compatible with HP Pavilion 14, 15 and 17 series plus 240, 245, 250, 255, 340, 348 and 470 G5 or G7 models.

  • Battery TypeLithium-Ion
  • Reliable power from a 41.9Wh lithium-ion cell
  • Up to 500 recharge cycles for long service life
  • Direct replacement for HT03XL and L11119-855 part numbers
  • Fits HP Pavilion 14, 15 and 17 series laptops
  • Includes screwdrivers for straightforward installation

What this battery fits

This 41.9Wh lithium-ion pack replaces the original cell in HP Pavilion 14 and 15 series laptops plus select 17-inch models and several HP business notebooks. It matches part numbers including HT03XL, L11119-855 and HSTNN-DB8R so owners can swap a worn unit without adapter changes.

Thermals and cycle life

The three-cell design runs at 11.55V and is rated for up to 500 recharge cycles over its service life. Normal office use keeps temperatures low and the pack draws only the current the laptop requests, so fan behaviour stays unchanged from the factory battery.

When the swap makes sense

Install this unit when the original battery no longer holds a useful charge or reports a permanent capacity loss. It restores full runtime for daily work but does not add extra capacity beyond the factory 41.9Wh specification. Buyers who want longer unplugged time need a higher-capacity alternative.

Highlights

  • Reliable power from a 41.9Wh lithium-ion cell
  • Up to 500 recharge cycles for long service life
  • Direct replacement for HT03XL and L11119-855 part numbers
  • Fits HP Pavilion 14, 15 and 17 series laptops
  • Includes screwdrivers for straightforward installation

Specifications

Battery TypeLithium-Ion

Questions about this item

How do I install the 3-cell 11.55V battery in my HP Pavilion 15-CS, and which step is most often missed?

Power off the laptop and unplug the AC adapter, remove the bottom case screws, disconnect the old battery cable from the motherboard before lifting it out, fit the new battery, reconnect the cable securely, then replace the case and screws. The step most often missed is disconnecting the battery cable before removing the old pack.

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

The pack is rated for up to 500 recharge cycles over its life. After that point capacity drops noticeably and the battery should be replaced. No scheduled maintenance is required; just avoid deep discharges and store at roughly 50 % charge if unused for weeks.

What limit appears first during sustained use of the 3630mAh battery?

The 41.9Wh capacity sets the runtime ceiling; under continuous load the pack will reach its discharge limit and require recharging before thermal or cycle-life limits become a factor.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.