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Compact black AC adapter with blue-tip barrel connector and detachable power cable

myVolts

myVolts 19.5V 2.31A 45W AC Adapter Laptop Charger 4.5×3.0 mm Blue Tip

SKU CH-3NJJ-7EP78

45W 19.5V AC adapter with 4.5×3.0 mm blue tip for compatible HP laptops

  • Worldwide voltage support via 100-240V AC input
  • Precise 19.5V 2.31A output matches HP laptop requirements
  • Blue-tip 4.5×3.0 mm connector fits listed HP models
  • Multiple safety protections guard against voltage, current and temperature faults
  • 18-month quality warranty plus 30-day money-back period

45W AC Adapter for HP Laptops

This 19.5V 2.31A power supply replaces the original charger for a wide range of HP Pavilion, Elitebook Folio, Stream, Spectre, Envy and Pro x2 models. It delivers 45W through a 4.5×3.0 mm round blue tip connector. The unit accepts 100-240V input for worldwide use.

Simple Plug-In Installation

Connect the DC plug to the laptop and the AC cable to a wall outlet; no drivers or software are required. The main risk is using the wrong tip size or polarity, so verify the 4.5 mm outer and 3.0 mm inner dimensions against the original adapter before connecting. Built-in protection circuits guard against over-voltage, over-current, short-circuit and over-temperature faults.

For HP Owners Needing a 4.5×3.0 mm Blue Tip

This adapter suits users with compatible HP laptops that require a 19.5V 2.31A 45W supply with the specific blue tip connector. It is not for devices that need a different voltage, amperage, wattage or connector geometry, such as USB-C power or larger barrel jack sizes. Buyers who want more power for high-performance workstations should look at a higher-wattage unit.

Highlights

  • Worldwide voltage support via 100-240V AC input
  • Precise 19.5V 2.31A output matches HP laptop requirements
  • Blue-tip 4.5×3.0 mm connector fits listed HP models
  • Multiple safety protections guard against voltage, current and temperature faults
  • 18-month quality warranty plus 30-day money-back period

Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the charger is delivering 19.5V 2.31A after plugging it in?

The blue LED on the connector lights when power flows. A multimeter on the 4.5×3.0 mm tip should read 19.5 V DC. The laptop battery icon will show charging within seconds.

What comes in the box and do I need a separate mains lead?

The package includes one AC adapter and one AC power cable. No extra cord is required for UK or EU sockets.

My laptop is an HP Stream 11-d020nr — is this the correct 45 W version?

Yes. The 19.5 V 2.31 A 45 W output with 4.5×3.0 mm blue tip matches the Stream 11-d020nr and all other models listed in the compatibility table.

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