HP HSTNN-LA18 40W power adapter 19.5V 2.05A
Delivers 40 W at 19.5 V 2.05 A with 4.0 × 1.7 mm tip and included power cord
- Genuine HP charger ensures reliable power delivery
- 40W output at 19.5V 2.05A matches original specifications
- Universal 100-240V input works worldwide
- 0 x 1.7 mm tip fits compatible HP laptops
- Includes power cord for immediate use
Genuine 40W HP adapter for 19.5V laptops
This genuine HP HSTNN-LA18 adapter supplies 19.5 volts at 2.05 amps for a total of 40 watts. It matches the original charger shipped with compatible HP notebooks. The unit includes a detachable power cord for immediate use.
Plug-in replacement with 4.0 x 1.7 mm tip
Installation is a simple plug into the laptop barrel jack and a wall outlet; the 4.0 by 1.7 millimetre connector fits the designated port directly. Common issues arise only if the tip size or the 19.5 volt output does not match the device requirements.
Limited to 40 watts at 19.5 volts
The adapter delivers a fixed 19.5 volt output up to 40 watts, so it cannot charge systems that demand higher wattage or a different voltage. It accepts worldwide 100 to 240 volt input at 50 to 60 hertz for travel flexibility.
How it compares
Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.
- Price $18.99
- Cheaper than about 60% of the 3,875 comparable items (median $23.99).
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Specifications
| Product | |
|---|---|
| Model name | HSTNN-LA18 |
Questions about this item
How can I confirm the adapter is delivering the correct 19.5V 2.05A output after plugging it in?
Use a multimeter on the 4.0 x 1.7 mm tip to verify 19.5V under load; the laptop should charge without the power LED flickering.
Does the package include the mains lead or must I buy a separate power cord?
The box contains the adapter and a detachable power cord rated for 100-240V~ 1.0A 50-60Hz input.
My laptop needs a 40W charger with a 4.0 x 1.7 mm tip — is this the right part number?
Yes, model HSTNN-LA18 (P/N 580402-001) matches 40W 19.5V 2.05A output and the 4.0 x 1.7 mm connector.
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