Asdsuning enough current is available the Car sets the current. If less is available then the car will match the available current. For example a 16A EVSE needs 16AIt can operate from any source that will supply at least 16A. My EVSE runs on a 50A breaker. It would accommodate a Volt at 14A but the rest of the 50A is wasted. I charge my Mercedes B at 40A on a 50A circuit. 40A at 80% maxes out a 50A circuit. My B charges at 40A but the EVSE would be happy to charge an enhanced Leaf at 27.5A The rest is unused..
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250e
White Ioniq limited.It sits just fine