Measuring multi voltages on multi cells

MarkT:
Use 13 high-resistance dividers into an 16->1 analog switch, buffer the output of the switch
with an opamp follower.

Can you find me a 16>1 muxer, like the xx4067, that can do 50 or 60 volt.

This clever circuit, posted by another member (can’t find the link), brings each cell voltage down to muxer/MCU level. Limited to 6-8 cells (opamp supply limit).
Leo…

Bal Charger.pdf (35.3 KB)