Are you wondering why people aren’t using motor that are capable of drawing more amps?
Yes they should handle 150a
At the moment I don’t know anything about vescs. Sorry. I do think you can control the current on the vesc though. Anyone?
I’m guessing here about what you are asking… You should never run lipos or lithium ion batteries to their full potential. These motors that you see on this site are optimized for skateboards and really they are all you need. They just don’t draw that much. I would say never run the batteries more than 75-80% of their potential for more than a few seconds. There is a great thread on here right now where they are discussing battery cells and voltage sag. I love reading all these threads when people geek out. It speaks to why we don’t run batteries full blast.
Check it out. http://www.electric-skateboard.builders/t/voltage-sag-what-is-the-most-suitable-battery-cell/14720/82
The batteries don’t force power to the electronics. It’s more like electronics take what they need from the batteries. So it’s good to have a buffer. The batteries will stay cooler, last longer and compliment the setup that way.
Hope that helps and if I mucked it up someone can hopefully help both of us