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Electric vehicle fast charge refers to the use of 380V direct current, which is usually what we say three-phase electricity. This power supply can generally charge the vehicle about 6-10 degrees of electricity per hour.
Slow charge is the 220V AC power used at home, which can only charge 3 degrees of electricity to the vehicle per hour. In terms of electricity consumption per hour, it must be faster charging. But the total charge is the same. Slow charge will lose a little less.