Thanks EVtinker,

I have a 2021 Tesla-Y, is that considered "old" or "new"-CCS?  When was the 
transition; it should be backwards compatible (like most things that are 
engineered properly - think B&W TV's to Color TV's etc.)

Since I have a 2020 Chevy Bolt, how would I know what Tesla superchargers I 
could use with an adapter?


Have a renewable energy day,

Mark

Mark E. Hanson
184 Vista Lane
Fincastle, VA 24090
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-----Original Message-----
From: evtinke...@gmail.com 
Sent: Wednesday, September 25, 2024 4:38 PM
To: 'Electric Vehicle Discussion List' <ev@lists.evdl.org>
Cc: 'Mark Hanson' <markehans...@gmail.com>
Subject: RE: [EVDL] Ccs to J3400(Nacs) Tesla adapters communication protocol

Tesla switched to the CCS communication protocol due to European requirements. 
Newer Teslas sold in the US speak CCS but use the NACS connector. Older Teslas 
need a hardware upgrade to use newer Tesla superchargers. CCS cars, even with 
an adapter, cannot use older Tesla superchargers as those don't use CCS 
protocols. 

-----Original Message-----
From: EV <ev-boun...@lists.evdl.org> On Behalf Of Mark Hanson via EV
Sent: Wednesday, September 25, 2024 3:29 PM
To: Electric List <ev@lists.evdl.org>
Cc: Mark Hanson <markehans...@gmail.com>
Subject: [EVDL] Ccs to J3400(Nacs) Tesla adapters communication protocol

Hi Folks
Isn’t a Tesla communication protocol adapter needed to operate your non-Tesla 
EV (like my Bolt) with the HVDC CCS to J3400(Nacs) physical adapter ?  I don’t 
see how the adapter would work without a GM agreement with Tesla to translate 
the data to GMs CCS fast charging protocol. 

Similarly I bought a few years ago a ChadeMo adapter ($400 from Tesla) that 
never worked well due to the incompatible data transfer to Electrify America 
fast chargers.  The few times I tried it, I had to call Electrify America 800 
number and have the technician remotely close the HV charge contactor to 
initiate charging. 
Best regards Mark
Sent from my iPhone
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