Well, most EVs have weak 12V batteries to power computers, lights etc. They are not designed to output the amps needed to turn an engine. That makes sense for t

Well, most EVs have weak 12V batteries to power computers, lights etc. They are not designed to output the amps needed to turn an engine. That makes sense for the EV since it saves a lot of weight. And the main batteries are usually 400V to 800V, which you can't use to jump another car (or you can use it once, at most).