Most likely, something is occasionally going wrong with the whole "Super" part of supercharging. Quick-charging a lithium battery is a lot more fiddly than jus

Most likely, something is occasionally going wrong with the whole "Super" part of supercharging. Quick-charging a lithium battery is a lot more fiddly than just slowly feeding it a trickle of charge, and the Superchargers push the "quick" aspect to the extreme, since it's one of the most problematic parts of EV use.