if you have an hour and twenty minutes), Elon Musk said, “We’ve already opened Tesla Superchargers to other electric cars in Europe, and we intend to roll that out worldwide. It’s a little trickier in the US because we have a different connector than the rest of the industry. But we will be adding the rest of industry connectors as an option to Superchargers in the US.
In the world of EV charging, there is no global standard for charging. Tesla began with its own proprietary charger plugs largely because no one else was interested in devising a standard, so it created its own. In Japan, CHAdeMO was the accepted standard. China has its own standard. Europe and the UK have adopted the CCS 2 standard. The US has gone with CCS as well, but its connectors are slightly different from the European connectors, so in North America it is known as CCS 1.
Another poster complained, “I just wish that the standard connector was more like the US Tesla one and less like CCS. No idea why those connectors are SO big and heavy. It’s a terrible design.” To which, SirEDCaLot had this detailed response: “J1772 on the other hand is much ‘dumber’. The charger puts out a square wave signal, the duty cycle of which indicates the current it can source. By sending that signal voltage back to the EVSE with various resistances / diodes in the mix, the car signals the charger to start current flow.
But for J1772 CCS, an entirely new communication system was required, namely HomePlug Green PLC , which creates a data link over power lines. Without that, the car couldn’t continually adjust the output of the charger as is needed for DC fast charging.”
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