[lutach]

"In both cases, it is therefore enough to intensively brake only once and the controller can be easily and quickly damaged,
basically after few meters‘ ride.

The paradox is that the better controller you use (the more quality FETs and PCBs, or the more FETs and thicker copper layers it
has on pcbs, that is smaller resistances of FETs and connections it has), the worse the situation. The motor, working as a generator
during braking, causes more energy (current) to flow to the battery. Thus higher voltages are caught on the resistances of the
conductors (Rconductor) and inner resistance of the battery (Rbattery) and therefore higher voltage will also be on the input of the
controller (UCONTROLLER). That means, the destruction of the controller is more likely to occur when there is not enough reserve in its
voltage dimensioning."

Patrick,

I would like your input on what Mr. Grisa mentioned in the PDF file provided by lydiasdad. You have mentioned that you use a lot of copper on your ESCs which I think is good, but Mr. Grisa thinks otherwise form what I gathered.