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Black rectangular 8-cell lithium-ion laptop battery with label showing model MPL08272P-02

Dr. Battery

Dr. Battery MPL08272P-02 8-cell 4400mAh 14.4V laptop battery

SKU CH-9ZC1-3ZV4K

Eight-cell lithium-ion replacement for HP ProBook 4730s and 4740s delivering 4400 mAh at 14.4 V

  • ColorBlack
  • TypeBattery
  • CompatibilityHP ProBook 4730s / 4740s Original Battery Part Number : 6337
  • Battery Type8 Cell Lithium-Ion
  • Battery Voltage14.4V
  • Battery Capacity4400 mAh
  • 8-cell lithium-ion design delivers 63 Wh capacity for extended runtime
  • 4 V output matches original HP ProBook 4730s and 4740s specifications
  • Smart control chip enables short-circuit, overheat and overload protections for safe operation
  • Built to OEM specification with professional-grade cells for reliable performance
  • Replaces multiple HP part numbers including 633734-141, 633734-151, 633734-421 and 633807-001

Replacement for HP ProBook 4730s and 4740s

This new Dr. Battery MPL08272P-02 is an 8-cell lithium-ion pack rated at 14.4 volts and 4400 milliampere-hours. It matches the original part numbers 633734-141, 633734-151, 633734-421, 633807-001, HSTNN-I98C-7, HSTNN-IB25, PR08, QK647AA and QK647UT. The black casing fits the ProBook 4730s and 4740s chassis directly.

Upgrade from a worn or lower-capacity pack

The 63 watt-hour capacity restores full runtime when the original battery no longer holds a charge or when a smaller cell-count pack was fitted at purchase. The jump is worth it if the laptop now shuts down early, throttles on battery power, or cannot complete a typical work session away from a wall socket. A built-in smart control chip manages quicker charging and lower power consumption during use.

Sustained load behaviour

Under continuous discharge the eight cells share current evenly, reducing per-cell stress and limiting voltage sag over long sessions. Protection circuits guard against short circuit, overheat and overload conditions so the pack remains stable during extended workloads. The one-year warranty period reflects the manufacturer’s confidence in that sustained reliability.

Highlights

  • 8-cell lithium-ion design delivers 63 Wh capacity for extended runtime
  • 4 V output matches original HP ProBook 4730s and 4740s specifications
  • Smart control chip enables short-circuit, overheat and overload protections for safe operation
  • Built to OEM specification with professional-grade cells for reliable performance
  • Replaces multiple HP part numbers including 633734-141, 633734-151, 633734-421 and 633807-001

Specifications

BrandDr. Battery
ModelMPL08272P-02
ColorBlack
TypeBattery
CompatibilityHP ProBook 4730s / 4740s
Original Battery Part Number :
633734-141 / 633734-151 / 633734-421 / 633807-001 / HSTNN-I98C-7 / HSTNN-IB25 / PR08 / QK647AA / QK647UT
Battery Type8 Cell Lithium-Ion
Battery Voltage14.4V
Battery Capacity4400 mAh

Questions about this item

Which ProBook chassis does the 8-cell 14.4V 4400mAh pack fit?

The battery matches HP ProBook 4730s and 4740s models, replacing original part numbers 633734-141, 633734-151, 633734-421, 633807-001, HSTNN-I98C-7, HSTNN-IB25, PR08, QK647AA and QK647UT.

What is the correct way to seat the battery so the smart control chip initialises?

Power off the laptop, slide the release latch, insert the pack until the latch clicks, then charge fully before first use; skipping the full initial charge prevents the chip from calibrating capacity correctly.

When should the 8-cell 63Wh lithium-ion unit be replaced?

Replace the pack when run-time drops well below the original 4400mAh rating or the battery no longer holds a charge after a full cycle; the built-in protection circuit guards against short circuit, overheat and overload during its service life.

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