An AC power adapter keep your electronic devices powered up and their batteries fully charged no matter your location. These power hubs are essential for the mobile business professional who needs to plug in and work without worrying about the type of power source available.

Naturally, since alternating current adapters convert the power to direct current, adapters that will perform the opposite are also available. No matter your power conversion need or device, adapters can be purchased quickly and easily online.

Before you purchase an adapter, it's important to:

1. Find out which AC adapters are recommended for use with your device, and whether you need an AC DC adapter instead.
   
2. Make sure the AC adaptors sold are EMC (electromagnetic compatibility) certified.
3. Make sure the attached power cord is compatible with the plug style where you will be using your device, and obtain universal AC adapters to ensure you can work anywhere.
   

Action Steps
The best contacts and resources to help you get it done

Shop for the AC adapters recommended for your device

Laptops, cameras and other essential mobile electronics might not work with the same AC adapter, or may not operate safely if used with the wrong AC adaptors. Be sure to check with the manufacturer before purchasing to ensure you're buying the correct AC to AC adapter.

I recommend: ACadapters.com lets you browse by manufacturer or laptop model, or search by part number. Manufacturers like Dell offer online compatibility lists with AC adapters info to help you buy the right laptop AC adapters for laptops you purchase from them. If you're a Mac user, you can access the same type of guide for Apple products to make sure you're buying the right laptop AC adapters.

Double-check for that EMC certified seal of approval

EMC-certified products means your product meets the electromagnetic compatibility standards of the United States, Europe, Japan and Australia. All EMC-certified products are given an International EMC mark.

I recommend: At Global Sources, you can search for EMC certified AC Adapters by manufacturer.

Check the power cord

If you're a world traveler, we trust you don't want to get stuck in another country with AC adapters that don't fit its plugs. Either purchase the power cord by country, or invest in a universal AC power adapter.

I recommend: Electronic Specialists, Inc. offers universal AC adapters, as does Walk About Travel Gear.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  For added functionality, purchase an AC power adapter or an AC DC adapter that can also charge your cell phone, iPod or PDA