AC Adapter Asus 45W 19V 2P 4.5PHI for Asus laptops

The AC Adapter Asus 45W 19V 2P 4.5PHI for Asus laptops is a replacement power supply designed to provide stable 45-watt output at 19 volts through a 4.5 mm phi DC plug and a 2-pin mains inlet. Intended for compatible Asus notebook models, this adapter supports charging and operation of the laptop when used at home, in the office, or on the move. The unit follows the original manufacturer form factor and electrical output to match expected device requirements.

Advantages

This adapter delivers a consistent 19V output with 45W maximum power, ensuring predictable charging behavior and system operation. The compact housing and two-pin mains connection make it straightforward to pack and use during travel. The 4.5PHI DC plug is compatible with a range of Asus laptop power ports, enabling quick replacement without additional converters. Built to replace an original-style charger, it supports both battery charging and direct power supply for typical notebook workloads.

Suitable for

• Charging Asus laptops that accept a 4.5 mm phi DC plug and 19V input
• Replacing a lost or faulty original 45W charger
• Portable use while traveling or commuting
• Desk use when a spare or secondary power supply is required

Key specifications

• Output voltage: 19 V
• Maximum output power: 45 W
• Connector type: 4.5 mm phi DC plug
• Mains connection: 2-pin inlet
• Intended use: laptop power supply and battery charging

How to use

Connect the adapter to the laptop’s DC input using the 4.5PHI plug, then insert the two-pin mains plug into a suitable AC outlet. Ensure the laptop is powered off or in an idle state when connecting for the first time. Monitor the device to confirm charging indicator LEDs or on-screen battery icons respond as expected. When not in use, unplug the mains lead and disconnect the DC plug from the laptop to conserve energy and reduce wear on connectors.

Usage recommendations

Use only with Asus laptops that match the adapter’s voltage and connector type. Avoid exposing the adapter to moisture, extreme temperatures, or prolonged direct sunlight. Do not attempt to open or repair the unit; consult a qualified technician for service. For optimal battery lifespan, avoid continuous charging cycles at high temperature and disconnect the adapter once charging is complete when practical.