At an AC charging station, AC power with the grid is equipped to this onboard charger, which converts it into DC power to recharge the battery. DC chargers give higher power charging (which needs much bigger AC-to-DC converters) by making the converter to the charging station instead of the vehicle https://shanegbxnf.gynoblog.com/32171388/usb-car-charger-near-me-fundamentals-explained