The Limits of Black Hole Charge

There's no theoretical limit to the mass that a black hole can have, but there are practical limits. As these black holes get more and more charged, they start to border on breaking the rules of general relativity. The punishment for going to physics jail is that you puff out of existence. Going to physics jails means you've broken a law of the universe and therefore you no longer exist. They're trapped with a physicist's dad's for the rest of their existence, telling bad dad jokes.