How Wireless Mobile Chargers Work

Author's Note

I saw my first wireless charging station on a visit to CES. I thought it was a great idea. But there were several drawbacks. Many required you to put your electronics in a bulky sleeve that nearly doubled the weight of the device -- and you were supposed to just keep the sleeve on all the time. If you didn't place the gadget on the charging pad correctly, your device wouldn't charge. And you still had to plug the charging station into the wall. But even with the drawbacks, the promise of a cable-free phone was very attractive. I only wish phones like the Palm Pre had made a bigger impact so that we would see wireless charging become more of a standard across devices.

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