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Rectangular black lithium-ion laptop battery with four cells, 14.8V 2600mAh 38Wh

FOCUSTEC

FOCUSTEC 746641-001 laptop battery 14.8V 2600mAh 38Wh 4-cell

SKU CH-H99B-1H1V4

A 14.8 V, 38 Wh lithium-ion pack with four cells and built-in over-charge and over-discharge protection for compatible HP laptops

  • Battery TypeLithium-Ion
  • Built-in circuit protection guards against overcharge and deep discharge
  • CE, FCC and RoHS certification confirms safety compliance
  • 38 Wh lithium-ion capacity delivers reliable runtime for compatible HP models
  • Four-cell 14.8 V design matches original voltage and form factor
  • Low-power IC and durable cells extend service life through quality testing

Direct replacement for HP 15-inch models

This 14.8V 2600mAh lithium-ion pack restores original runtime to compatible HP 15-G and 15-R series laptops. It matches the 38Wh capacity and 4-cell layout of the factory HSTNN-LB5Y and HSTNN-PB5Y units. CE, FCC and RoHS certifications confirm the safety circuits meet regulatory requirements. The black housing fits the existing battery bay without modification.

Upgrade from a depleted or swollen original cell

When the original battery no longer holds a charge or shows physical swelling, this unit returns the notebook to its designed mobile endurance. The jump is worth it if the laptop otherwise meets your performance needs but is tethered to an outlet. Built-in overcharge and deep-discharge protection helps prevent the failure modes that affect ageing packs. Low-power IC design keeps self-discharge minimal during storage.

Verify the exact part number on your old battery

Check that the label lists 746641-001, 740715-001, 746458-421, 751906-541, OA03, OA04, HSTNN-LB5Y, HSTNN-LB5S or HSTNN-PB5Y before ordering. Confirm the laptop model appears in the supported list such as 15-G012DX, 15-G019WM, 15-R011DX, 15-R029WM, 15-R030WM or 15-R063NR. Ensure the chassis uses a 4-cell 14.8V form factor; other voltages or cell counts will not fit. Buyers needing a higher-capacity 6-cell or 9-cell option cannot use this pack.

Highlights

  • Built-in circuit protection guards against overcharge and deep discharge
  • CE, FCC and RoHS certification confirms safety compliance
  • 38 Wh lithium-ion capacity delivers reliable runtime for compatible HP models
  • Four-cell 14.8 V design matches original voltage and form factor
  • Low-power IC and durable cells extend service life through quality testing

Specifications

Battery TypeLithium-Ion

Questions about this item

Will the 4-cell 14.8V pack fit the battery bay on my HP 15-R029WM?

The pack is built to the original 746641-001 form factor, so it slides into the same bay on every listed model including the 15-R029WM.

What is the common mistake when inserting the HSTNN-LB5Y replacement?

Users often push the pack in without hearing the dual latch click; both latches must engage or the battery will not register.

How do I know when the 38Wh Li-ion unit needs replacing?

When a full charge only lasts a fraction of the original runtime, the cells have degraded and the pack should be swapped.

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