Forum Discussion
DrewE
Dec 12, 2017Explorer III
I have a few hour meters in my house that operate for a year or so on a sing AA battery. I hang them on the walls of various rooms. :B That works out to something like 1.5 or 2 mW per clock, very roughly speaking
It's not too surprising to me that the meter uses 20 mW or less.
You might also be able to power it with a capacitor rather than a resistor as the dropping element. That should in theory be more efficient...not that it matters much in practice in this case since you're using next to no power and have plenty available.
It's not too surprising to me that the meter uses 20 mW or less.
You might also be able to power it with a capacitor rather than a resistor as the dropping element. That should in theory be more efficient...not that it matters much in practice in this case since you're using next to no power and have plenty available.
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