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HP HSTNN-LA40 45W power adapter brick with detachable mains cord

HP

HP HSTNN-LA40 45W 19.5V 2.31A 854054-002 856948-002 ac adapter

SKU CH-B5YV-VGGRA MPN HSTNN-LA40

Genuine 45 W AC adapter delivering 19.5 V at 2.31 A with power cord included

  • Genuine HP adapter ensures reliable power delivery
  • 45W output at 19.5V 2.31A matches laptop requirements
  • 100-240V 50-60Hz input works worldwide
  • Built-in protection guards against short circuit and overheating
  • Power cord included for immediate use

HP 45 W AC adapter for compatible laptops

This genuine HP power supply delivers 45 W at 19.5 V and 2.31 A for notebooks that require the HSTNN-LA40 specification. It accepts a universal 100-240 V input at 50-60 Hz and includes a detachable power cord. The unit is supplied new and replaces part numbers 854054-002 and 856948-002. Built-in safeguards protect against incorrect voltage, short circuit and internal overheating.

Suitable for owners of HP laptops specifying a 45

Buyers whose devices demand a higher wattage rating or a different output voltage should look at another power supply. The adapter is not intended for units that require a proprietary connector shape not covered by this model.

Single fixed output of 19.5 V at 2.31 A

This voltage and current combination is the deciding factor for compatibility; the laptop must list exactly 19.5 V and 2.31 A on its original charger label. If the device specifies a different voltage or amperage, this adapter will not operate correctly.

Highlights

  • Genuine HP adapter ensures reliable power delivery
  • 45W output at 19.5V 2.31A matches laptop requirements
  • 100-240V 50-60Hz input works worldwide
  • Built-in protection guards against short circuit and overheating
  • Power cord included for immediate use

Specifications

No published specifications for this item yet.

Questions about this item

Should I pick the 854054-002 or the 856948-002 part number?

Both part numbers refer to the same 45W HP HSTNN-LA40 adapter with 19.5V 2.31A output, so either will work for a compatible laptop.

What does the 45W rating mean when I plug it into my laptop?

It supplies up to 45 watts at 19.5 volts and 2.31 amps, enough to charge and run laptops designed for that power level.

Will the 100-240V 50-60Hz input work on mains worldwide?

Yes, the adapter accepts 100 to 240 volts at 50 or 60 Hz, covering standard mains in most countries with the included cord.

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