So I just finished all the soldering required for a build I’m doing. I wired four 3S 5000mah batteries in series, for a total of 12S. I had tested my VESC with 6S before (two 3S batteries in series), and it worked great. But as soon as I plugged in my 12S battery, I heard a pop (which could have been just the spark), and the VESC led didn’t light up. I tried powering it with 6S like before but it still wouldn’t light up.
So I have come to the conclusion that I fried my VESC. But I’m not sure why. As far as I know, VESC supports up to 12S. I even tested the voltage with a multimeter before to make sure I didn’t screw anything up and that the battery connections were correct. Could it be because I failed to use an anti spark loop?
Additionally, does anyone know if it’s fixable? Could it be possible that a small component like a fuse is simply blown and I can replace it?
What I also noticed was that if I wait a minute or so and plug in the battery, I’ll hear a spark. But if I unplug and plug back in within ten seconds or so I won’t hear anything. Not sure what’s going on. Any help would be appreciated, thanks!
I got my VESC from Amazon, so I was thinking about returning it, but I’ve already soldered on 4mm bullet connectors for my motor, so I’m 90 percent sure they won’t accept it.