- Self-Charging Phones Are on the Way, Finally
A handful of companies are coming up with ways to extend your phone’s battery life when you’re far from a power outlet.
The case that Will Zell slides onto his iPhone doesn’t look that unusual, but it’s doing something pretty out of the ordinary: capturing some of the radio waves that the phone transmits when connecting to cell-phone towers and Wi-Fi routers, converting them to electricity, and feeding that power back to the phone’s battery.
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