Have you looked at any of the other VESC threads?
https://endless-sphere.com/forums/search.php?keywords=vesc&terms=all&author=&sc=1&sf=titleonly&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search
There are some discussions, dunno how high a current or how low a voltage.
You might especially check out the Serious FOCer thread.