Hello wizards of electronics !
I made great advances on my electric trike in the last few weeks, and
my own battery build is rising in priority very fast!

To keep costs down I am now considering to create a hybrid between my
proposed cell level protection scheme (
https://prezi.com/qibqej3sqqy1/open-source-battery/ ) and a more
conventional BMS where one circuit monitors the whole pack.
So I know there are BMS chips that can measure the voltage of series
of cells. I wonder how it is done? Maybe a charge sample moved around
by a variety of FET?
For a beginning I want to work with a 24S LiFePO4 (72V or full at
87.6V) But a flexibility of the circuit would be even better! I still
want to bridge cells in or out of the circuit to protect them either
from overcharge or deep discharge! What I think is smart to avoid in
this first iteration is to have one microcontroller per cell level
with all the communication hassle this might imply!
Thanks for all comments they are appreciated !

Cheers

Tobias
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