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Black rectangular lithium polymer laptop battery pack

Dr. Battery

Dr. Battery DRPROHP306P-01 laptop battery 11.4V 40Wh

SKU CH-1459-KQ1T5

Replacement lithium-polymer battery rated 11.4V and 40Wh fits HP ProBook 430, 440 and 450 G4 models

  • ColorBlack
  • TypeBattery
  • CompatibilityCOMPATIBLE LAPTOP MODELS HP ProBook 430 G4: 1AA17PA | 1TT30E
  • Battery TypeLithium Polymer
  • Battery Voltage11.4V
  • Battery Capacity3500 mAh
  • Compatible with HP ProBook 430 440 450 455 470 G4 models
  • 4V 40Wh lithium polymer cell restores original runtime
  • Short circuit overheat and overload protection built in
  • Professional series grade cells maintain long service life
  • New condition replacement for 851477-421 851477-541 851477-831 HSTNN-Q02C HSTNN-UB7C HSTNN-LB7I

Replacement for HP ProBook G4 series

This lithium-polymer battery fits HP ProBook 430, 440 and 450 G4 models. It replaces original part numbers such as 851477-421, 851477-541 and HSTNN-PB6W. The unit is new and built with grade-A cells for reliable service life.

Capacity 3500 mAh at 11.4 V

The pack stores 40 Wh of energy, delivering typical run times for everyday office workloads and web browsing. Heavy multi-tasking or sustained high brightness will drain the charge faster, so plan for a recharge during long sessions away from mains power.

Voltage must match 11.4 V exactly

Your laptop requires an 11.4 V battery; using a different voltage risks damage and will not power the system. Verify the original battery label shows 11.4 V before ordering this replacement.

Highlights

  • Compatible with HP ProBook 430 440 450 455 470 G4 models
  • 4V 40Wh lithium polymer cell restores original runtime
  • Short circuit overheat and overload protection built in
  • Professional series grade cells maintain long service life
  • New condition replacement for 851477-421 851477-541 851477-831 HSTNN-Q02C HSTNN-UB7C HSTNN-LB7I

Specifications

BrandDr. Battery
ModelDRPROHP306P-01
ColorBlack
TypeBattery
CompatibilityCOMPATIBLE LAPTOP MODELS
HP ProBook 430 G4:
1AA17PA | 1TT30ES | Y7Z43ET | Y9G09UT#ABA |
HP ProBook 440 G4:
1AA11PA | Y7Z73EA | Y7Z80EA#ABU | Z1Z82UT#ABA | Z1Z84UT |
HP ProBook 450 G4:
1AS03PA | 1BS22UT | 1BS24UT | 1BS25UT | 1CR16PA | 1CR19PA | 1CR30PA | 1CR31PA | 1EQ87PT | 1EQ88PT | 1EQ89PT | 1EQ90PT | 1EQ91PT | 1EQ92PT | 1HZ57PA | 1HZ58PA | 1HZ59PA | 1HZ61PA | 1HZ62PA | 1KA15EA | 1KA18EA | 1LQ39LT | 1LQ44LA | 1PN00PA | 1PN11PA | T8B71ET | T8B72ET | W4M98ET | W4M99ET | Y4B36LT | Y4B37LT | Y4B38LA | Y4B46LA | Y4B46LT | Y4B47LT | Y4B48LA | Y4B49LA | Y4B50LT | Y4B51LT | Y4B52LA | Y4B53L
Battery TypeLithium Polymer
Battery Voltage11.4V
Battery Capacity3500 mAh

Questions about this item

Will this 11.4V 40Wh lithium polymer battery work in my HP ProBook 450 G4 that currently uses an 851477-421 pack?

Yes, the DRPROHP306P-01 replaces the 851477-421 and is listed as compatible with the full HP ProBook 450 G4 range, so it will fit and power the laptop normally.

How can I confirm the 3500 mAh battery is charging and holding capacity after installation?

After fitting the pack, check the OS battery report or BIOS health screen; it should show a design capacity near 40 Wh and the charge percentage should rise steadily while plugged in.

Does the box include any tools or cables, or is it just the replacement battery?

The package contains only the new 11.4 V lithium polymer battery; no screwdrivers, cables or additional accessories are supplied.

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