Just curious if anyone uses a pi powered from an 18650 or a lipo battery?
And how do you handle the shutdown when the battery is running low?
Or just cold turkey down when battery is down?
I am thinking of an AD converter to check battery voltage and control it that way.
Then when the battery is running low sending i shutdown
One day I found this: https://www.amazon.de/Innovateking-EU-Stromversorgung-Unterbrechungsfreie-Batterieladegerät-Erweiterungsplatine/dp/B08NJSR77R
I don't have it. But it looks like you can monitor it with python. So it should work with NR as well
haha that last post is funny 
it is all most build in.
so with an AD converter it should be piece of cake.
Thanks!
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