I rarely have to use Superchargers because I have charging at home. But when I do, it's about $25 for an 80% top up (e.g. going from 10% -> 90%) in my Model Y.

I rarely have to use Superchargers because I have charging at home. But when I do, it's about $25 for an 80% top up (e.g. going from 10% -> 90%) in my Model Y. Just looked it up: $0.45/kWh the last 4 times at Tesla Superchargers in California.