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The Benefits Of DC Charger and AC Charger
https://www.charge-uni.com/the-benefits-of-dc-charger-and-ac-charger.html


The Benefits of DC to DC Charger
The charger is an energy replenishment device for electric vehicles. In terms of charging types, chargers can be divided into EV chargers DC and AC chargers, corresponding to the output of DC and AC power.

I. What is DC charger?

DC charging is commonly known as "fast charging". When a DC charger is started, the built-in conversion module of the charger is used to directly convert the AC power from the grid into DC power, which is charged into the battery through the EV charging port. The input voltage of DC charger is usually three-phase four-wire AC 380V±15%, frequency 50Hz, and the output is adjustable DC power, which directly charges the power battery of electric vehicle. At present, the power of types of DC chargers is generally between 15KW-120KW, with each 15KW as a grade, i.e. 15KW, 30KW, 45KW, 60KW, and so on. The charging current of DC charger is large, ten times or even dozens of times of the conventional charging current, and the charging speed is very fast, generally in 30 minutes, the electric car can be fully charged with 80% of the power, after that, the constant current charging is changed to constant voltage charging to protect the battery, and the power is charged to the full.

II. What is AC charger?

AC charging is what is usually called "slow charging", which is a charging method that uses chargers to charge the battery by converting the AC power from the grid into DC power through the charging port and the vehicle charger. This ev ac charger’s power is small, generally below 7KW. If you use 7KW AC slow charging to charge the mainstream electric vehicles nowadays, it usually takes about 8 hours, which is a long charging time.