[Moe]

When Hyundai starts shipping the Ionic 5 with native J3400 and a CCS1 adapter, and if the following Kia EV6 refresh and EV3 debut do the same, it’s going to be game on for all other CCS automakers. They need not only J3400 receptacles but also CCS1 adapters.

 

[EnergizerBunny]

I read a different article which said the CCS adapter would be sold, implying an extra cost item… we’ll have to wait and see. I sure wouldn’t want a NACS plug on a non-Tesla for the next 5 years or so, since all new EV chargers are being built with CCS. Maybe that will change someday…

A CCS adapter is such a trivial issue.
Give me the NACS port and full access to SuC and would line up to give them my money.

 

[Jupiter]

A CCS adapter is such a trivial issue.
Give me the NACS port and full access to SuC and would line up to give them my money.

Why not a NACS adapter? What difference does it make which port thr car has if you carry an adapter. I won’t buy a car with a NACS port anytime soon … I’d have to change all of my home chargers or use adapters at home.

 

[EnergizerBunny]

Why not a NACS adapter? What difference does it make which port thr car has if you carry an adapter. I won’t buy a car with a NACS port anytime soon … I’d have to change all of my home chargers or use adapters at home.

I am going to be stuck with the CCS for the foreseeable future so a NACS adapter is very desirable no question about that.

But , unless something changes again, having the NACS port would be required for me to buy an EV.
Then having a CCS adapter would be very optional to me and probably avoid CCS charging.

 

[Joe_U698745]

Can any version of Tesla Super Charger support a 800V DC charger as both Hyundai and Kia require? EA does provide for 800V charging. Maybe the Cyber Truck supports 800V charging but will charge slower on Tesla Super Chargers.

Point being that Hyundai and Kia 800V vehicles will charge slower on 400V Tesla Super Chargers if and when access is granted. Hopefully the adapters geared towards 400V adaptation will support 800V once Tesla Super Chargers (V4?) are able to provide it.

 

[Jupiter]

Can any version of Tesla Super Charger support a 800V DC charger as both Hyundai and Kia require? EA does provide for 800V charging. Maybe the Cyber Truck supports 800V charging but will charge slower on Tesla Super Chargers.

Point being that Hyundai and Kia 800V vehicles will charge slower on 400V Tesla Super Chargers if and when access is granted. Hopefully the adapters geared towards 400V adaptation will support 800V once Tesla Super Chargers (V4?) are able to provide it.

No, only the v4 units do… and most v4 don’t have the v4 back end, so just seeing the new charger doesn’t mean it will support it.

 

[Moe]

Hopefully the adapters geared towards 400V adaptation will support 800V once Tesla Super Chargers (V4?) are able to provide it.

Given both CCS1 and v4 Superchargers support 1,000V charging, I expect the insulation breakdown of adapters in both directions will exceed that.

 

[Jupiter]

Given both CCS1 and v4 Superchargers support 1,000V charging, I expect the insulation breakdown of adapters in both directions will exceed that.

It’s the amps, not the volts that cause heat. And Tesla’s adapters are limited to 500 amps. OOS talked about it in their video on the EX90, where that new Volvo was shown drawing 550amps from an EVgo unit.

 

[Moe]

It’s the amps, not the volts that cause heat. And Tesla’s adapters are limited to 500 amps. OOS talked about it in their video on the EX90, where that new Volvo was shown drawing 550amps from an EVgo unit.

Please note the post I was responding to was about voltage, not current.

 

[Joe_U698745]

It’s the amps, not the volts that cause heat. And Tesla’s adapters are limited to 500 amps. OOS talked about it in their video on the EX90, where that new Volvo was shown drawing 550amps from an EVgo unit.

Contact spacing matters as flash over can occur with an increase in voltage. By right dielectric withstanding voltage for the adapters should be 1414 Vdc. Contact size should be larger to accommodate the increased current. Contact plating matters as well for longevity.

My guess is Tesla will always limit the CCS 1 800V cars to 400Vdc to prevent damage to their connectors as well as the adapters. Once the 800V cars are natively NACS, 800V charging if available will be safer.

 

[Moe]

It’s the amps, not the volts that cause heat. And Tesla’s adapters are limited to 500 amps. OOS talked about it in their video on the EX90, where that new Volvo was shown drawing 550amps from an EVgo unit.

350kW/550A=636V charge or only 80% of 800V

That’s like the 320V (288V nominal) 10 module Ultium—only 80% of 400V
except 150kW GM max/320V=469A

700V or higher charge will deliver 350kW at 500A or less

IMO, the problem looks like the EX90 low voltage, more than a 500A adapter.

At any rate, the Supercharger will limit the amps to keep it safe.

 

[Jupiter]

350kW/550A=636V charge or only 80% of 800V

That’s like the 320V (288V nominal) 10 module Ultium—only 80% of 400V
except 150kW GM max/320V=469A

700V or higher charge will deliver 350kW at 500A or less

IMO, the problem looks like the EX90 low voltage, not a 500A adapter.

At any rate, the Supercharger will limit the amps to keep it safe.

According to the video, Kyle says the Volvo would be one of the few cars capable of over 500 amps in a 400 volt system. But the adapter would limit it to 500 because the Supercharger would sense the adapter and limit output. This is an issue only for 400 volt cars, of course, but I thought it was interesting.

 

[Moe]

According to the video, Kyle says the Volvo would be one of the few cars capable of over 500 amps in a 400 volt system. But the adapter would limit it to 500 because the Supercharger would sense the adapter and limit output. This is an issue only for 400 volt cars, of course, but I thought it was interesting.

That makes sense with the Volvo operating “400V” at the Ultium/10 voltage without the 150 kW GM limit. At 175kW/320V it would want 547A.

 

[Jupiter]

That makes sense with the Volvo operating “400V” at the Ultium/10 voltage without the 150 kW GM limit. At 175kW/320V it would want 547A.

I’m not sure if the new EX90 is this way, but my Polestar 2 (which shares platform with the C40 and XC40) operates at the high end of 400v, so it charges very fast on a 400v charger. They increased the module count from 24 to 27 in tne new-for-2024 battery. This lets them advertise 205kW max charging rates. And it seems to easily push the 500 amp limit on the EVgo and EA stations I’ve tried. I’ve never tried one of those Delta manufactured stations that can do 550 amps.