For the past month or so, my electric toothbrush has been charging wirelessly, but not the way you think. My toothbrush charger is not plugged into an outlet. There are no wires or cables. The charging cradle can sit anywhere on the bathroom counter and continue to charge my toothbrush. This is because I am beta testing a prototype from Wi-Charge, an Israeli company that employs infrared technology to deliver wireless power across distances of up to 30 feet.
Several companies have demonstrated wireless power over distance in the past decade, but tangible products have failed to materialize. More than a century has passed