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Compact black AC adapter with blue-tip barrel connector and two-pin mains plug

Hadepa A1800 45W 19.5V 2.31A Blue Tip AC Adapter

SKU CH-271H-9424N

45W 19.5V 2.31A AC adapter with 4.5mm blue tip for HP Pavilion, Stream and Spectre x360 laptops

  • CompatibilityLaptops
  • Battery Voltage5V
  • Battery Capacity19.5 volts
  • AC Adapter Voltage19.5V
  • AC Adapter Current2.31 amps
  • AC Adapter Output Power45W
  • 45W output charges compatible HP laptops efficiently
  • 5V 2.31A matches original charger specifications exactly
  • 5mm x 3.0mm blue tip fits Pavilion Stream Spectre models
  • 100-240V input works worldwide without a voltage converter
  • New condition ensures reliable performance from first use

What It Is

The Hadepa A1800 is a 45W AC adapter built for laptops that charge through a 4.5mm blue-tip barrel connector. It replaces original chargers for many HP Pavilion, Stream, Spectre x360 and Pavilion x360 models that require 19.5V at 2.31A.

Connector and Build

The 4.5mm by 3.0mm blue tip mates securely with the matching port on supported notebooks. A two-pin North American mains plug feeds the universal 100-240V 50-60Hz input, so the same brick works on either voltage without a selector switch. The corded design keeps the transformer inline between wall outlet and laptop.

Thermals and Power

Rated output is 45W at 19.5V and 2.31A, with fast-charging support noted by the manufacturer. The adapter runs from standard mains frequencies and delivers its rated current continuously under normal load. No active cooling is present, so operation stays silent.

Highlights

  • 45W output charges compatible HP laptops efficiently
  • 5V 2.31A matches original charger specifications exactly
  • 5mm x 3.0mm blue tip fits Pavilion Stream Spectre models
  • 100-240V input works worldwide without a voltage converter
  • New condition ensures reliable performance from first use

Specifications

BrandHadepa
ModelA1800
Part NumberTPN-LA15
CompatibilityLaptops
Battery Voltage5V
Battery Capacity19.5 volts
AC Adapter Voltage19.5V
AC Adapter Current2.31 amps
AC Adapter Output Power45W
FeaturesFast Charging, 4.5*3.0mm Blue Tip, Corded Electric, 0, type_a_2pin_na, 19.5 volts, 2.31 amps

Questions about this item

What output standard does the 4.5 mm × 3.0 mm blue tip connector cap at?

The adapter delivers up to 19.5 V at 2.31 A for a maximum of 45 W, so the blue tip connector is capped at 45 W output.

What physical clearance does the 4.5 mm × 3.0 mm blue tip need on the laptop side?

The connector is a 4.5 mm outer diameter by 3.0 mm inner diameter barrel plug, so the laptop charging port must accept that exact blue tip size.

How do you install the adapter, and which step is often missed?

Connect the detachable AC cord to the brick, plug the cord into a 100–240 V 50–60 Hz mains socket, then insert the blue tip firmly until seated; the step often missed is pushing the tip in fully so the charge LED lights.

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