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J1772 don't talk to each other or share the circuit as a as I'm aware.
Only tesla does that and I think they work in pairs.
Then you have 3 or 4 different DC fast chargers at the moment.
They are not going to pay to install DC fast chargers unless it's to do for profit charging. I occasionally see them used and they still run $8,000 to $10,000 each.
I don't know how much they are new.
Just put in some J1772 like everyone else.
Our nation electric code has guidelines for installing evse circuits.
In the US large numbers of public charging stations grouped together normally use 208v.
Then the chargers can be limited to anything from 6 amps all the way to 24 amps for a normal affordable j1772 charge setup.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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