For “normal” AC charging, e.g. charging overnight at home, or at work during your working hours, electric vehicles use a so-called onboard charger (acting as a rectifier) to convert AC (alternating current) power from a charging station or wall outlet into DC (direct current) power that can be stored in the vehicle's battery. Typical empty to full charging times for AC charging range from 5 to 10 hoursTooltip, depending on the individual (infrastructure side) electricity installation and vehicle.
For fast DC charging, e.g. at a motorway charging station during a long distance trip, the charging station provides DC power directly into the high-voltage (HV) battery. While charging, the vehicle continuously communicates the required/allowed power to the charging station, which provides the power by adequately matching the output voltage relative to the high-voltage (HV) battery. Typical DC charging times from 10% to 80% range from 25 to 40 minutesTooltip.
The EV charging system is designed to charge the battery safely and efficiently. The EV Charger and converter may also have built-in safety features such as overtemperature, overcurrent and overvoltage protection, which help to prevent damage to the battery or other components of the vehicle's electrical system.