News Researchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered devices

[Admin]

Research conducted by researchers of the National University of Singapore in collaboration with others has found a way to harvest energy from different wireless signals used for multiple applications, giving the potential to reduce the dependency on batteries needed for certain situations.

Researchers discover battery-free technology which harvests power from radio and Wi-Fi signals for low-powered devices : Read more

 

[AtrociKitty]

This is not even remotely new. It's also wildly impractical; either the amount of power harvested is vanishingly small, or enough power is collected that you create an RF deadzone behind the gathering device. The former is useless compared to a battery, and the latter will have the FCC after you.

 

[scostigan]

https://en.wikipedia.org/wiki/Wardenclyffe_Tower Not new at all

 

[Giroro]

Oh, cool. I remember hearing about this every couple years, for the last few decades.

Next up, lets hear about that revolutionary new battery tech that's totally going to replace Li-ion you guys, we promise. Then after that, I'm probably going to need to know one weird trick for hydrogen power that the gas companies hate.

 

[hotaru251]

The former is useless compared to a battery

the point of this tech (i know its not new) is for stuff that doesnt "need" a battery becasue it uses such small power amounts. think a doorbell. it isnt using much power and not having to worry about battery is a good thing (as battery are not great for environment).

 

[pixelpusher220]

To me these aren't replacements for batteries, but 24/7 chargers for them. Similar to a solar cell film or something on one side of a remote. It gathers really low amounts of light from the surrounding space but keeps the batteries topped up. This though obviously doesn't need to be 'placed' as accurately or with a particular side up. Hell it might even work while *in* the couch cushions hiding from JD Vance.

 

[endocine]

All that energy from the 5G towers is what gave me COVID

 

[t3t4]

Don't even pretend like any of this is new! Those who follow Tesla's work have been doing this since the early 1900's with his patented Radiant Energy Receiver. At one point I even considered bringing a product to market since nothing existed otherwise, but it's extremely simple technology, and it's already patented. Just read the patent and build your own, or watch a YouTube video, which ever is easier. Every variation of the thing all does the same exact thing, nothing new here.