DC charging columns are operated with direct current (DC) and are often referred to as fast charging columns because they can transmit high performance in a short period of time. As a rule, the power with a voltage of 450 V and a current strength of up to 150 A is between 20 and 60 kW. Typical standards for DC charging are CHAdeMO and IEC Type 2. The charging power is very high and thus allow maximum speed – approx. 20 minutes (at >450 V DC, >100 A) for a 20 kWh car battery.