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Black rectangular AC adapter with blue-tip 4.5mm barrel connector

Kenuco

Kenuco 45W AC Adapter 19.5V 2.31A Blue Tip 4.5mm

SKU CH-F78N-3YWTN

45W replacement AC adapter delivers 19.5V 2.31A through a 4.5mm blue tip for compatible HP Stream, Pavilion, EliteBook, Folio, ZBook and ProBook models

  • TypeAC Adapters
  • 45W output powers compatible HP laptops efficiently
  • 5V 2.31A output matches original charger specifications
  • 5mm blue-tip connector fits listed HP models
  • 100-240V input supports worldwide mains voltage
  • Replaces multiple HP part numbers including 719309-001 and 740015-001

Replacement 45W AC adapter for HP laptops

This 45-watt AC adapter replaces original HP chargers for a wide range of Stream, Pavilion, Envy, Spectre, ProBook and EliteBook models. It accepts 100 to 240-volt input at 50 or 60 hertz and delivers 19.5 volts at 2.31 amps through a 4.5-millimetre blue-tip connector. The unit is supplied new and matches part numbers such as 719309-001, 721092-001 and 740015-001. It suits owners who need a direct plug-in replacement for a lost or damaged power supply.

Who this suits and who should look elsewhere

Buyers with compatible HP notebooks requiring 19.5-volt 2.31-amp input and the 4.5-millimetre blue-tip plug will find this a direct fit. It covers Stream 11, 13 and 14 series, Pavilion x360 11, 13 and 15 models, Spectre x360 13 and 15, Envy x360 13 and 15, plus numerous ProBook and EliteBook SKUs listed in the compatibility data. Users whose laptops demand a different voltage, amperage or connector size — such as USB-C power or a larger barrel tip — cannot use this adapter and must source the correct specification for their device.

Deciding specification: 4.5 mm blue-tip connector

The single detail that determines whether this charger will work is the 4.5-millimetre by 3.0-millimetre blue-tip connector paired with 19.5-volt 2.31-amp output. If the laptop’s charging port matches that exact barrel size and the original supply is rated at 45 watts, this unit will connect and power the machine. A different tip diameter, centre-pin arrangement or voltage rating means the adapter will not fit or could damage the notebook, so verify the connector and output values before purchase.

Highlights

  • 45W output powers compatible HP laptops efficiently
  • 5V 2.31A output matches original charger specifications
  • 5mm blue-tip connector fits listed HP models
  • 100-240V input supports worldwide mains voltage
  • Replaces multiple HP part numbers including 719309-001 and 740015-001

Specifications

TypeAC Adapters

Questions about this item

What voltage and connector does my laptop need to accept this 19.5V 2.31A adapter with a 4.5mm blue tip?

Your laptop must accept 19.5V at 2.31A and use a 4.5mm × 3.0mm blue tip barrel connector.

Will this 45W adapter power an older HP EliteBook Folio 1020 G1 that originally shipped with a 45W unit?

Yes, the EliteBook Folio 1020 G1 is listed among the compatible models for this 45W adapter.

How can I confirm the adapter is delivering the rated 45W after I plug it in?

The laptop should show it is charging and the battery icon will indicate AC power; a multimeter on the tip should read 19.5V.

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