A number of companies have been working on over-the-air charging – the holy grail for electronic devices – for several years now. Just think about how cool it’d be to never again have to plug your gadgets into wall sockets, change the batteries in your smoke detector, or even put down your phone so it can juice up. There’s been some progress since these firms got started, but it looks like we’re almost at the finish line now, thanks to Ossia – which has just secured FCC approval for its wireless charging technology. The Bellevue, Washington-based company, which was founded…

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