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I have a hard time expressing how unbearably stupid "wireless charging" of all kinds is, especially when it is touted as "green." The only viable use case I've

I have a hard time expressing how unbearably stupid "wireless charging" of all kinds is, especially when it is touted as "green." The only viable use case I've been able to come up with is charging my electric toothbrush by induction, so we don't have to worry about corrosion on electrodes due to my drooling on them. Otherwise; "golly, let's radiate lots of energy into the ambient atmosphere so consumers can have a science fiction experience like they're in the Jetsons."

erkkie 12y ago
I charge my phone wirelessly in the car, with a magnetic wireless charger which doubles as a docking station (which automatically turns on waze/navigation). Super convenient for getting in/out of the car without needing to attach wires. Also imagine embedded medical devices.
- johnward 12y ago
  When I had a nexus 4 I used the QI charging all the time. It's not really a must have feature but it certainly is nice to you be able to throw my phone down with out having to plug in wires.
mcculley 12y ago
There's plenty of use cases for devices with low power requirements that would benefit from wireless charging. Wearables, for example: watches and other little bits of technology that you wouldn't want to think twice about carrying into the shower or through the rain and requiring metallic connectors for charging them would reduce lifespan and convenience and impact the form factor.
seanflyon 12y ago
Wireless charging only seems unbearably stupid because you are thinking of standard, non-resonant induction. Resonant induction is much more efficient. "The fields used are predominately non-radiative" http://en.wikipedia.org/wiki/Resonant_inductive_coupling http://en.wikipedia.org/wiki/Resonant_inductive_coupling edit: The article is not referring to resonant induction or standard induction, but using ultrasound instead.

erkkie 12y ago

I charge my phone wirelessly in the car, with a magnetic wireless charger which doubles as a docking station (which automatically turns on waze/navigation). Super convenient for getting in/out of the car without needing to attach wires. Also imagine embedded medical devices.

johnward 12y ago
When I had a nexus 4 I used the QI charging all the time. It's not really a must have feature but it certainly is nice to you be able to throw my phone down with out having to plug in wires.

mcculley 12y ago

There's plenty of use cases for devices with low power requirements that would benefit from wireless charging. Wearables, for example: watches and other little bits of technology that you wouldn't want to think twice about carrying into the shower or through the rain and requiring metallic connectors for charging them would reduce lifespan and convenience and impact the form factor.

seanflyon 12y ago

Wireless charging only seems unbearably stupid because you are thinking of standard, non-resonant induction. Resonant induction is much more efficient. "The fields used are predominately non-radiative" http://en.wikipedia.org/wiki/Resonant_inductive_coupling http://en.wikipedia.org/wiki/Resonant_inductive_coupling edit: The article is not referring to resonant induction or standard induction, but using ultrasound instead.