For those who want to understand the types of EV charging system in the States, this below link is a very good article. It describes three different levels of charging and the type of connectors (protocols) used in each.
In summary,
Connector types
Connector: Port J1772
Level: 2
Compatibility: 100% of electric cars
Tesla: With adapter
Connector: CHAdeMO
Level: 3
Compatibility: Check specifications of your EV
Tesla: With adapter
Connector: SAE Combo CCS
Level: 3
Compatibility: Check specifications of your EV
Tesla: No
Connector: Tesla HPWC
Level: 2
Compatibility: Only Tesla
Tesla: Yes
Connector: Tesla supercharger
Level: 3
Compatibility: Only Tesla
Tesla: Yes
source: https://chargehub.com/en/electric-car-charging-guide.html
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