What do you mean by Teslas are incompatible with NACS?
All Teslas in the US use NACS, but not all are compatible to CCS, which you mention...maybe I'm not following or you misplaced CCS with NACS.
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Tesla BEV Competition Developments
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All Teslas in the US use NACS, but not all are compatible to CCS, which you mention...maybe I'm not following or you misplaced CCS with NACS.
Nope. They all use the, now, NACS connector but with Tesla proprietary communication protocols.
An actual NACS charger, following the J3400 standard, only supports CCS communication, so Teslas older than ~2021 can't use a non-Tesla NACS DC fast charger without having the CCS retrofit installed. (Which is offered for the S&X but not yet for the 3&Y.)
Right, but it's still the NACS connector, which Tesla has always used.
You understand how that is confusing, right?
Right, NACS connector, but not NACS communications. So only half NACS compliant, meaning not compatible at all. (You can plug it in, but it won't work.)
They should probably call the CCS retrofit a "NACS retrofit with CCS adapter", as it actually makes the car NACS/J3400 compatible.
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navguy12
Active Member
Don’t know why, but this is the first thing that sprang to my mind upon seeing this Cadillac:View attachment 1003358
Cadillac Celestiq Customers Are Going Wild With Their Specifications
Customers are not holding back with their $340,000 EVs.carbuzz.com
Doggydogworld
Active Member
Yes, it will be confusing. Tesla owners without the NACS upgrade will roll up to a non-Tesla NACS charger, maybe with a Tesla happily charging in the next stall over, and plug in. The plug will fit just fine, but the car won't charge. A similar thing will happen to Ford/GM/etc. owners at v2 Superchargers. The plug will fit but their car won't charge.
NAV systems will try to direct cars away from such chargers, but you know what they say about foolproof systems. Let's hope all OEMs create helpful error screens to handle these inevitable situations.
NACS, as released by Tesla, was communication agnostic, J3400 is not.
Although, the Tesla spec did call out certain protocols. Which ones? I can't say because Tesla has pulled all the CAD and most documents from the website forcing people toward the $195 SAE spec...
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Buckminster
Well-Known Member
Terminator857
Active Member
Is there a source for this info? The Nacs wikipedia article seems to disagree with your statements: North American Charging Standard - Wikipedia
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The original documents Tesla released, from which a portion was posted just a couple posts up. The only communication protocol listed are standards for CCS.
The Tesla protocol was never open sourced, so third-party DC fast chargers can't use/support it. Even if they are NACS/J3400 compliant. (ChargePoint has even mentioned that they were looking in to see if they could get permission to ad the Tesla protocol to their chargers with NACS connectors so that there aren't any weird surprises where older Teslas won't work on them.)
But now that NACS is an official standard you would have to purchase the J3400 specs to see it, and what protocols they list in it, but I can't imagine it has changed much.
Terminator857
Active Member
Yes.
O.k.
None of this says that older Tesla won't work on NACS. I have read long ago that the Tesla protocol is just CCS. Don't have a source. So I'm wondering what makes you think that Model 3 and Ys won't work on NACS. No one else is making that claim.
Knightshade
Well-Known Member
If the Tesla protocol on older cars is just CCS, why do older cars need a hardware upgrade to use a CCS charge adapter?
CCS Combo 1 Adapter
Expand your fast charging options with the Tesla CCS Combo 1 Adapter. The adapter offers charging speeds up to 250kW and can be used at third-party charging networks. The CCS Combo 1 Adapter is compatible with most Tesla vehicles. Some vehicles may require a retrofit to enable use of the CCS...
shop.tesla.com
It isn't. If it was there would be no retrofit necessary for Teslas to use a CCS charger. It doesn't even use the same communication method. (The Tesla protocol uses single wire CAN while the CCS protocol uses PLC.) Which is why a retrofit is necessary, as older Teslas don't have the hardware to communicate via PLC.
There are lots of people that are saying this. (Like I said, even ChargePoint has said it.)
And it isn't all Model 3s and Ys, just ones without a CCS compatible charge port ECU, either from the factory or as a retrofit. (Pretty much ones earlier than 2021, though Tesla started putting CCS charge port ECUs in at one point, and then because of chip supply issues switched back to non-CCS compatible ones for a while, before switching back to all CCS compatible ones.)
RobStark
Well-Known Member
The current Tesla charging uses CCS protocols.
The original Tesla charging used CHAdeMO protocols.
I have a 2018 model 3 and 2021 model Y (picked up in Dec 2020). Neither have issues charging at v2 nor v3 superchargers ... yet.
Edit: just a commentary to say that your post made sense.
BYD sells record 341,043 NEVs in Dec, reaches full-year 3 million target
BYD sold 3,012,906 passenger NEVs in 2023, including 1,574,822 BEVs, 1,438,084 PHEVs.
cnevpost.com
BYD sold 526k+ BEVs in Q4. 3.013 NEVs for the year, of which 1.575m were BEVs.
RobStark
Well-Known Member
These are the EVs with longest range tested last year in Motor Trend's designed testing loop. Not EPA. Not every BEV sold in America was tested. Just the longest range performers of the BEVs tested.
DanCar
Active Member
Range test is missing the 405 range Model S.
CR said they got 366 miles of range out of it. Electric Vehicles That Can Go More Than 250 Miles on a Charge - Consumer Reports
CR said they got 366 miles of range out of it. Electric Vehicles That Can Go More Than 250 Miles on a Charge - Consumer Reports
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