Wow, impressive… I have my share of doubts/questions though
From the first picture what I see is the following:
charger positive <-> battery positive
charger negative <-> BMS C-
BMS B- <-> battery negative
two 6S balance leads to BMS 12s balance port: how to adapt between the two?
Did you make xt60 connectors with just one of the cables active, either positive or negative?
The only potencial error prone thing I see here, is that it is easy to make a mistake and swap the lead negative and positive in the wrong xt60 plug, reversing the polarity.
Regarding the portable 12S charger, it’s a great idea. I have here some 18650 cells from an ex solar generator, which I could use for that purpose.
Hum… never used fuses, how would one install and use it?
Don’t know them, I’ll check them out, thanks.