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The Tesla adapter is MUCH smaller: https://teslatap.com/wp-content/uploads/2020/06/connector_co...

The Chademo and Us CCS plugs are terrible. Objectively bad (expensive, heavy, etc).

The European CCS plug isn’t quite as good as Tesla’s but is probably good enough.

The Us should adopt either Tesla’s plug or the European plug.

Why is CCS so big compared to the Tesla one? Why does one plug have to connect to both AC and DC even if you're using only either one?

One is designed by committee, the other is designed by a company with a focus on trying to make electric cars more usable and desirable than fossil cars.

Also, CCS wanted to reuse some of the pins from the L1/L2 J1772 plug, but the original plug didn’t have room for larger pins. Tesla’s plug was designed from the beginning to be eventually capable of fast charging.

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