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Compact black AC adapter with blue-tip 4.5mm barrel connector and detachable power cord

myVolts

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

SKU CH-ETA5-B1MER

Replacement 45W charger with 4.5mm blue tip for HP Stream, Spectre, Envy and Pavilion laptops

  • 45W output powers compatible HP laptops reliably
  • 5V 2.31A matches original adapter specifications exactly
  • 5mm x 3.0mm blue tip fits listed HP models
  • 110-240V input works worldwide without a voltage converter
  • Replaces HP part numbers including 741727-001 and HSTNN-CA40

45W HP Laptop Charger

This 45W AC adapter supplies 19.5V at 2.31A through a 4.5mm blue-tip connector. It replaces the original HP charger for Stream 11, 13 and 14 models, Spectre x360, Envy x360, Pavilion x360, EliteBook Folio and select 250, 255, 340, 350, 430, 450 and 840 series notebooks.

Thermals and Power Draw

The unit accepts 110-240V input and delivers a steady 45W output during normal charging. No active cooling is present, so the adapter runs silently. Heat dissipation is handled by the enclosure surface under typical office or home use.

Sustained Load Behaviour

Under continuous full-load operation the adapter maintains its rated 19.5V 2.31A output without voltage droop. The design is validated for long sessions such as all-day work or overnight charging cycles.

Highlights

  • 45W output powers compatible HP laptops reliably
  • 5V 2.31A matches original adapter specifications exactly
  • 5mm x 3.0mm blue tip fits listed HP models
  • 110-240V input works worldwide without a voltage converter
  • Replaces HP part numbers including 741727-001 and HSTNN-CA40

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 4.5mm blue-tip connector on my HP laptop?

Align the 4.5mm by 3.0mm blue tip with the charging port and push straight in until it seats firmly; the step people miss is confirming the original charger shows 19.5V 2.31A 45W before swapping.

What maintenance will this 45W adapter need over time?

Inspect the cord and 4.5mm connector for wear every few months; replace the unit if the tip becomes loose, the cable frays, or the brick runs excessively hot during normal charging.

What limit appears first when the adapter runs continuously at full load?

The 45W output ceiling is reached first; sustained draw at 19.5V 2.31A will hit thermal protection before any higher power could be delivered.

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