I was using a 4 Ohm (500W) resistor with a ODrive 3.6 and a power supply 48V. I worked great, but since I was producing some negative current and the psu shut down to protect itself I wanted to try with a battery. I wired a 48V battery (measured 49V with the ODrive). And I just had the time to ask the vbus when the resistance exploded, I haven’t even commanded anything. Does anyone have an idea of what could have happened?