Wireless charging may be awesome, and it’s probably how charging will be in the future, but it has some issues. This has to do with Qi, the current wireless charging standard. Positioning your device on the inductive coil is often difficult, as most devices won’t automatically center on the coil (unlike Palm devices on the Touchstone). Sometimes, it takes some positioning to get your device charging. Not only is this an annoyance, but it can result in a dead device the next morning.
However, resonance charging fixes this issue with the ability to charge the device from up to 18 millimeters away. It even works through obstructions, like thick cases. This means that there is no fancy positioning involved, and your device will simply charge when it’s near your charging pad.
Now many of you might be disappointed, because you have already adopted Qi and don’t want to buy new devices altogether to get charging working with this new system. But fear not, the people behind this demonstration say that it’s backwards compatible with older Qi devices. You’ll only need a new charging pad that has resonance charging.
The technology isn’t quite ready for the market yet. At the demonstration, the wireless charging pad shown off had 65% the efficiency of current Qi chargers. However, it’ll be greatly improved over this prototype once it hits the market. There is no expected date when the technology will be ready for consumers, but it should be soon. Finally, wireless charging really seems to be going in the right direction.