DC charging station: A DC electric vehicle charging station, commonly known as "fast charging", is a power supply device that is fixedly installed outside the electric vehicle, connected to the AC power grid, and can provide DC power for non vehicle mounted electric vehicle power batteries. The input voltage of the DC charging station is three-phase four wire AC380V ± 15%, with a frequency of 50Hz. The output is adjustable DC, which directly charges the power battery of the electric vehicle. Due to the use of three-phase four wire power supply in DC charging stations, sufficient power can be provided, and the output voltage and current adjustment range is large, which can meet the requirements of fast charging.

AC charging station: AC electric vehicle charging station, commonly known as "slow charging", is a power supply device that is fixedly installed outside the electric vehicle and connected to the AC power grid to provide AC power for the electric vehicle mounted charger (i.e. the charger installed on the electric vehicle). The communication charging station only provides power output and does not have charging function. It needs to be connected to the onboard charger to charge the electric vehicle. It is equivalent to only playing a role in controlling the power supply.

The difference between the two: Simply put, AC charging stations require the use of on-board chargers for charging, while DC fast charging stations do not require this device. There is a significant difference in charging speed between the two. It takes 8 hours to fully charge a pure electric vehicle (with a normal battery capacity) through an AC charging station, while it only takes 2 to 3 hours to fully charge through a DC fast charging station. The communication charging station provides power input to the electric vehicle charger, but due to the small power of the onboard charger, it cannot achieve fast charging.