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Compact black laptop charger with blue-tip 4.5mm connector and attached power cord

Kenuco

Kenuco 4.5mm 45W 19.5V 2.31A laptop battery

SKU CH-G6AX-NH2SZ MPN 4.5mm

Replacement 45 W AC adapter with 4.5 mm blue-tip plug for compatible HP laptops

  • TypeAC Adapters
  • 45W output charges compatible HP laptops efficiently
  • 5V 2.31A matches original power requirements precisely
  • 5mm blue tip with central pin fits listed models
  • 100-240V input works worldwide without a converter
  • New condition ensures reliable performance from first use

What this charger is

This Kenuco 45 W AC adapter replaces the original power supply for many HP Pavilion, Stream, Zbook and Spectre models. It delivers 19.5 V at 2.31 A through a 4.5 mm blue-tip barrel connector with a centre pin. The unit accepts 100–240 V input for worldwide use.

Check your laptop before ordering

Confirm that your notebook requires exactly 19.5 V and 2.31 A and that the original charger uses a 4.5 mm barrel plug with a centre pin. Match the part numbers listed in the specifications — such as 741727-001 or 740015-003 — to the label on your existing adapter. Verify the connector size and polarity against the device manual.

Who this suits and who should look elsewhere

Ideal for owners of compatible HP laptops who need a new 45 W replacement charger with the correct blue-tip connector. Not suitable for devices that require a different voltage, a higher wattage, a USB-C power input or a barrel plug of another diameter. Buyers needing a multi-voltage travel adapter or a unit with a detachable cable should consider other options.

Highlights

  • 45W output charges compatible HP laptops efficiently
  • 5V 2.31A matches original power requirements precisely
  • 5mm blue tip with central pin fits listed models
  • 100-240V input works worldwide without a converter
  • New condition ensures reliable performance from first use

Specifications

TypeAC Adapters

Questions about this item

Does the 4.5mm blue-tip charger arrive with a mains lead or must I buy one separately?

The adapter ships with a detachable AC cord so you can plug it straight into a 100-240V outlet.

My HP Pavilion 15-cs3055wm needs 45W — is this the correct 19.5V 2.31A version or is there a higher-wattage alternative?

This unit is the 45W 19.5V 2.31A model listed for the 15-cs3055wm; no higher-wattage variant is offered in this listing.

Will the 4.5mm smart blue tip deliver a full 45W to a Spectre X360 15 under load?

Yes, the adapter is rated 19.5V at 2.31A for a maximum of 45W output, matching the Spectre X360 15 requirement.

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