Eli5 why does dc charging work so much faster than ac charging?
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For EVs, AC charging is typically a lower voltage and don’t need heavy wires. But as the voltage increases so does the wire size, thus making the charging cable to difficult for an average person to handle.
With DC, smaller wires are able to be used for the equivalent amount of power, and the battery itself is DC, so the AC to DC converter in the car is simply bypassed. Now more power can be sent over the same sized cable that isn’t too heavy.
Most other charging cables are DC at the point they connect to the device, but that is mostly because no one wants the power brick built in as a trade off for not needing to dig through their bag for a charger when traveling.
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