iPhone 6 Case Gets Battery Power from Thin Air

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hpram99

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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.
 

leo2kp

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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.
I was thinking the same thing. Doesn't absorbing RF mean less signal overall for communication, and thus more power usage? I guess we'll see...
 

ammaross

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Nikola Labs claims the case can power the iPhone 6 30 percent longer using this technique.
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. :)

This case would likely cause weaker signal strength and likely gets near zero power from stray radio waves (only effectively harnessing radio frequencies from the phone itself).
 

blarto

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The stupid part is harvesting your own wifi energy. Turn your wifi off for energy savings duh
 

aldaia

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The only wasted energy in a phone (or any computing device for that matter) is heat. The day they invent a case that can convert heat back to electricity I would consider it as serious possibility. Anything else lies closer to the scam/hoax realm.
 
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