A fully charged phone from thin air? That's the reality Nikola Labs hopes to usher in with its new iPhone 6 case.
iPhone 6 Case Gets Battery Power from Thin Air : Read more
iPhone 6 Case Gets Battery Power from Thin Air : Read more
That's not how this works. RF harvesting has been announced and debunked in the past. The 20dBm (100mW) your AP transmits is down to -20dB (0.01mW) by the time it reaches your device 10 feet away. So stray airwaves are out of the question.
Now we're going to break the energy saving technology in a phone, which transmits only the minimum power level needed to reach a cell station, and *absorb* that energy. Your device will now transmit at higher levels to deal with the shielding.
What they don't tell you is that to get even close to that "30%" the phone has to stay in sleep mode the whole time.Nikola Labs claims the case can power the iPhone 6 30 percent longer using this technique.