this post was submitted on 17 May 2025
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Hardware

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[–] cmnybo@discuss.tchncs.de 15 points 6 days ago

It costs $1250 for something with terrible efficiency. You could buy an awful lot of batteries for that much money.

[–] anamethatisnt@sopuli.xyz 12 points 6 days ago (1 children)

Last time I read about this about 2/3 of the energy of the laser disappeared during the conversion to electricity. Has that improved?

[–] anamethatisnt@sopuli.xyz 12 points 6 days ago* (last edited 6 days ago)

Mor says Wi-Charge’s wireless power transfer efficiency is about 15 percent compared to a direct wired connection.
That’s not counting the energy used to power the transmitter’s Wi-Fi connection, status LEDs, and so forth.

[–] kattfisk@lemmy.dbzer0.com 2 points 5 days ago

Why does the lock, faucet and shades run on batteries to begin with? They aren't portable devices, just spend a few minutes running a damn cable and you never have to care about power ever again.

The coolest thing about this IR laser is the very cyberpunk things a hacker might do with it.