Ever seen a battery free smart lock that siphons power from your phone – Breaking News & Latest Updates 2026
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Sean Hollister
Ever seen a battery-free smart lock that siphons power from your phone?

I wrote about this idea in 2022, it actually exists, and it’s super cool! Your credit card doesn’t need a battery for tap-to-pay, your ID badge doesn’t need a battery when you tap the door reader, and the same goes for these NFC locks — they all collect tiny amounts of wireless power.

Just let me know if you ever see one a little more... practical?

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