The fuels which will be used in electric cars are called alternating current (AC) and direct current (DC) power. The batteries in EV, seeps DC power only, and the power from the grid is always alternating current (AC) .That why there is a converter built into the plug which converts AC power to DC.
When it comes to electric vehicles, the converter is built inside the car. It’s called the “onboard charger” though it really is a converter. It converts power from AC to DC and then feeds it into the car’s battery.
The difference between AC charging and DC charging is the location where the AC power gets converted. Unlike AC chargers, a DC charger has the converter inside the charger itself. That means it can feed power directly to the car’s battery and doesn’t need the onboard charger to convert it. DC chargers are bigger and faster.
Most of the charging stations that you’ll find today use AC charging. It’s ideal for charging your car at home or work because it takes more time to charge, whereas DC charging, on the other hand, is more common near highways or at public charging stations, where you don’t have much time to recharge. But DC charging will also make its way into home charging, offering new possibilities for customers since it allows fast charging.