At an AC charging station, AC power from the grid is provided to this onboard charger, which converts it into DC power to recharge the battery. DC chargers supply higher power charging (which involves much bigger AC-to-DC converters) by setting up the converter in to the charging station in place https://deanztlct.blogsidea.com/39558504/the-best-side-of-car-charger-3-in-1