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Rectangular black lithium-ion laptop battery with label showing 11.1V 2800mAh 3-cell

FOCUSTEC

FOCUSTEC JC03 11.1V 2800mAh 3-Cell laptop battery

SKU CH-NWRQ-P1XXZ

11.1 V 31 Wh lithium-ion replacement battery for HP 15-bs, 15-bw and 17-bs series laptops

  • Battery TypeLithium-Ion
  • Ready-to-install replacement for HP 15-bs, 15-bw and 17-bs notebooks
  • 31 Wh lithium-ion cell delivers 11.1 V across 3 cells
  • Built-in short-circuit, over-charge, over-discharge and over-voltage protection
  • CE, FCC and RoHS certified for safety compliance
  • Brand-new unit matching part numbers HS04, JC03, HSTNN-LB7V and 919700-850

11.1 V 2800 mAh replacement battery

This new lithium-ion pack delivers 31 Wh at 11.1 V across three cells. It is built as a direct replacement for HP notebooks in the 15-bs, 15-bw and 17-bs series and matches part numbers such as HS04, JC03 and HSTNN-LB7V. CE, FCC and RoHS certifications plus built-in short-circuit, overcharge, over-discharge and over-voltage protection complete the safety profile.

Who this suits and who should look elsewhere

Owners of the listed HP 15-inch and 17-inch models who need a factory-specification 31 Wh battery will find the correct voltage and connector here. Buyers whose laptops require a different voltage, a higher watt-hour rating or a different form factor cannot use this unit. The pack is also unsuitable for any non-HP device or for HP series not shown in the compatibility list.

Deciding specification: 31 Wh capacity

The single figure that determines fit is the 31 Wh energy rating combined with the 11.1 V output. If the original battery label shows 31 Wh and 11.1 V this replacement will match the runtime and charging behaviour of the factory pack. A different watt-hour value means the battery will not sit correctly in the charging circuit or the chassis.

Highlights

  • Ready-to-install replacement for HP 15-bs, 15-bw and 17-bs notebooks
  • 31 Wh lithium-ion cell delivers 11.1 V across 3 cells
  • Built-in short-circuit, over-charge, over-discharge and over-voltage protection
  • CE, FCC and RoHS certified for safety compliance
  • Brand-new unit matching part numbers HS04, JC03, HSTNN-LB7V and 919700-850

Specifications

Battery TypeLithium-Ion

Questions about this item

How long does the 31 Wh capacity last before the battery needs recharging during continuous use?

The 31 Wh capacity provides runtime that varies with the laptop model and workload; the 3‑cell 11.1 V pack is rated at 2800 mAh.

Does the battery generate noticeable heat or noise when the laptop runs all day?

As a passive lithium‑ion pack it has no moving parts and produces no audible noise; normal warmth occurs during charge or heavy discharge.

Which HP part numbers must match for this JC03 pack to fit my notebook?

Compatible part numbers include HS04, JC03, HSTNN‑LB7V, 919700‑850, 919701‑850, 919681‑221, 919681‑421, 919682‑121, 919682‑421, 919682‑831, HSTNN‑DB8E, HSTNN‑H7BX, HSTNN‑L67N, HSTNN‑LB7W, HSTNN‑PB6Y, HSTNN‑HB7Y, TPN‑C129, TPN‑C130, TPN‑W129, TPN‑W130, TPN‑Q186, TPN‑Q187.

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