3 ms·
And it's pretty simple to figure out why it's so for electronic calculators. I had one of these, a modern-ish one though, except that the solar panel was defect
by AshamedCaptain 6y ago
And it's pretty simple to figure out why it's so for electronic calculators. I had one of these, a modern-ish one though, except that the solar panel was defective and never actually worked. I only noticed after 3 years of use. That's how much the builtin _half-discharged_ coin battery would last... and how useless the solar panel actually is... I would even guess they only put in the solar panel for the look.
You could probably power such a calculator from ambient radiowaves, using a galena crystal...
- frosted-flakes 6y agoA lot of basic solar-powered calculators don't have batteries at all. Covering the solar panel will shut it off.
- kn0where 6y agoAnd a lot of cheap calculators don’t even have real solar cells: https://youtu.be/uLTDuGhqE2w https://youtu.be/uLTDuGhqE2w
- AshamedCaptain 6y agoYeah, what I mean (and has been better put elsewhere) is that the consumption of your average calculator is so low as to be practically negligible (<1mW?), otherwise capable of running for years on a depleted battery. Which is why they may work from such a small solar panel, but at the same time it says nothing about the solar panel itself.