3S lipo cell monitoring(Maybe with arduino)

MikeLemon

100 µW
Joined
Jun 22, 2017
Messages
8
Hello,

I've been looking everywhere and couldn't find the right BMS for multi lipo cells sins all have a too low discharge voltage too high of a charge voltage and mostly slow balance current(Bad for my big 3S 22AH battery which I want to charge with 30A)

Now I'm less worried about the balance side of things and I'm looking for a good method to use for reading the voltage of each cell(that would not cost too much sins I've seen IC's that can reach 10$ alone)
So I started doing something with arduino, a few voltage divider resistors for each cell and some calibration at the end and found out how unstable and inaccurate it is...

Also would like to know of a good over current protection solution(Already got the charge / discharge circuits made).

Does anybody have a good solution for that?

Thanks for your time!
 
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