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What is the difference between Alternating Current (AC) and Direct current (DC)?

What is the difference between Alternating Current (AC) and Direct current (DC)?

There is alternating current (AC) and direct current (DC). The electricity that comes from the grid is always alternating current. However, the batteries in electric cars can only store direct current. For this reason, most electronic devices have a built-in converter. Every time you charge a device, the plug actually converts alternating current to direct current.

AC charging for electric cars:

The converter converts the current from AC to DC, and then feeds it into the vehicle's battery. This is the most common charging method for electric vehicles today, and most chargers use AC power.

DC charging for electric cars:

The electricity that comes from the grid is always AC. The difference between charging with AC and charging with DC is where the AC is converted. Inside or outside the vehicle. Unlike AC chargers, a DC charger has the converter inside the charger. This means it can feed current directly into the car battery and does not need an integrated charger to convert it. AC chargers are larger and faster for electric cars.

- Most charging stations, especially those at home or in the office, are alternating current (AC).
- However DC (direct current) is more commonly used on highways or public roads because you don't have much time to recharge.

If you wish to know more information about the charging station installation at your home, please contact our Carplug experts.


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