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Most EVs (Volt, Leaf, Prius Plug In, etc) have a J1772 plug which is 220V only and certified to 30A (level 2), although I think it can do up to 80A if I am not mistaken. It cannot do 110V (level 1) because it does not have the neutral wire.
The level 3 fast charger requires a separate CHAdeMo plug on the Leaf, and provides the car with 400VDC+ so no rectification is necessary.
Tesla came up with their own plug because even the CHAdeMo plug doesn't even come close to the 90kW (!!!) that their superchargers are capable of.
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