New energy vehicles and charging stations complement each other, with the power system providing energy to run electric vehicles, which is a crucial foundational support system for new energy electric vehicles.
Electric vehicle charging methods can be divided into slow charging, fast charging, battery swapping, wireless charging, and mobile charging.
AC Slow Charging
AC slow charging is the conventional charging method, with relatively low charging currents, typically around 16-32A, resulting in longer charging times.
After the battery is discharged, it should be charged immediately, usually taking about 5-8 hours, and sometimes even more than 10 hours.
Advantages:
- It can improve charging efficiency and extend the lifespan of the electric vehicle.
Disadvantages:
- The charging time is too long.
DC Fast Charging
Conventional charging takes too long and is inconvenient in many ways, while DC fast charging provides convenience for charging electric vehicles.
DC fast charging, also known as emergency charging, generally takes 20 minutes to 2 hours, completing the charging in a very short time.
The charging current ranges from 150-400A.
Advantages:
- The charging time is short.
Disadvantages:
- The large charging current reduces the battery's lifespan.
