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ledow t1_irwbilz wrote

Or you could just use a cheap off-the-shelf, no-moving parts battery that'll supply 290μW for... well... years. Potentially decades.

A CR2032 delivers ~225mAh at 3V. That's 675 mWh. Or 290μW for... 2327h or 3 months (if you're running it full blast at the stated 290μW all that time). From a single cheap battery.

Put a couple of AAs in there and you can run it for decades.

And it's a damn sight smaller than 15 x 20cm.

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5kyl3r t1_irwjeq7 wrote

and a 15x20 cm solar panel can do 6 watts with 20% efficiency cells. 20x more powerful than this original articles "device" lol. these breakthrough stories are getting worse by the year

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