Laptop power adapter Energy4U PA87 — 36 W, 12 V, 3 A, 1.7 mm plug

Energy4U PA87 is a 36 W laptop power adapter that delivers a 12 V DC output at 3 A via a 1.7 mm barrel plug. It is designed to provide a stable low-voltage supply for compatible notebooks and small portable devices that require a 1.7 mm connector. The compact housing and modest power rating make this adapter suitable as a replacement or spare for devices with matching voltage and current requirements.

Advantages

The adapter offers regulated DC output to help maintain device performance and protect against minor voltage fluctuations. Its small form factor supports convenient use at home, in the office, or when travelling, and the 1.7 mm plug ensures direct compatibility with devices designed for that connector size. The unit's 36 W power capability and 3 A current rating cover a range of low-power notebooks and portable electronics.

Suitable for

• Notebooks and netbooks that require 12 V and up to 3 A with a 1.7 mm barrel connector
• Portable devices and accessories that accept a 1.7 mm DC plug and specified voltage
• Replacement or spare adapter for home, office, or travel use

Key specifications

• Output voltage: 12 V DC
• Maximum output current: 3 A
• Rated output power: 36 W
• Connector type: 1.7 mm barrel plug (DC)
• Output polarity: centre positive (standard for many laptop adapters)
• Form factor: compact external AC-to-DC adapter

How to use

Match the adapter's output voltage, current capability and connector size with the requirements of your device before connecting. Insert the 1.7 mm barrel plug firmly into the device's power inlet and connect the adapter to a suitable mains outlet. Ensure the adapter is placed on a stable, ventilated surface while in use and avoid covering it to prevent overheating. Disconnect the adapter from mains and from the device when not in use.

Usage recommendations

Verify device compatibility by checking the device's rated input voltage and required current. Do not use the adapter if the device requires a different voltage or a higher current than 3 A. For safety, inspect the cable and plug for damage periodically and replace the adapter if any faults are found.