I liked the composition of the thermoepoxy resin that AI recommended. Epoxy resin plus plasticizer plus quartz sand. I should probably replace the sand with quartz dust, because the grade I’m currently using contains roadside stones))
Measurements of the internal dimensions of the case showed that a 1mm thick copper busbar can be used in the battery for the FD Max instead of chocolate foil.
Oops, when I said mistake, I meant I should have mirrored the components. How did you get the positive and negative terminals on the same side of the 11s3p battery? Can you draw a diagram?