AC power adapter HP 45W 19V model 8XX66AV, replacement laptop charger

HP AC power adapter 45W 19V (model 8XX66AV) is a replacement laptop charger designed to supply stable 19V DC power with a maximum output of 45W. The adapter is intended as a direct power source and charging solution for compatible HP notebooks. It delivers regulated voltage, includes built-in protections against overcurrent and short circuit conditions, and is compact enough for daily transport or travel.

Advantages

The adapter provides a consistent 19V output with up to 45W power delivery to maintain laptop operation and battery charging. Built-in safety features help protect the laptop from common electrical faults while the adapter’s compact form factor and standardized connector make it convenient for use at home, in the office, or on the go.

Suitable for

• Charging compatible HP notebooks that require 19V DC and up to 45W
• Replacing a lost or damaged original charger
• Portable use during travel or in multiple work locations
• Powering a laptop for everyday tasks such as office work, browsing, and studying

Key specifications

• Output voltage: 19V DC
• Maximum output power: 45W
• Output current: up to 2.37 A
• Connector type: standard laptop DC barrel connector (matches HP compatible inlet)
• Input: AC mains voltage compatible with common regional standards
• Safety features: overcurrent protection, short-circuit protection, regulated output
• Form factor: compact external power brick with attached cable

How to use

Connect the adapter to an AC mains socket using the included power cord, then insert the DC connector into the laptop’s power inlet until it seats firmly. Verify that the laptop indicates external power or charging. For first-time use after replacing a charger, allow the battery to charge uninterrupted until the laptop reports a sufficient charge level. Disconnect the adapter by pulling the plug straight out from the laptop’s inlet; avoid pulling on the cable. When not in use, store the adapter in a dry, cool place.

Recommendations

Use this adapter only with laptops that specify 19V DC and a compatible power connector. Ensure connections are secure and avoid exposing the adapter to moisture, extreme temperatures, or heavy mechanical stress. If the laptop shows abnormal behavior, disconnect the adapter and consult the device manual or a qualified technician.