[johnrobholmes]

Some batteries don't even have a surge rating....


Good point though. The temp of the battery is also very important. I have some 25C lipos that won't put out 25C at 3.35v until I push em hard for a few minutes. Once they warm up the voltage actually bounces up a bit from 3.3 to 3.4v. It is with a prop load, not in cars but you get the idea.