Cybertruck max AC charge rate

SolarWizard

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anyone got any good info in the max onboard charger input?

We are currently testing a 25kW AC plug on a 100A circuit from (a manufacturer I can’t publicly name yet.)

any chance the CT will be able to accept this? I don’t have a list of vehicles that can currently handle this but I know there are some coming

Thanks!
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anyone got any good info in the max onboard charger input?

We are currently testing a 25kW AC plug on a 100A circuit from (a manufacturer I can’t publicly name yet.)

any chance the CT will be able to accept this? I don’t have a list of vehicles that can currently handle this but I know there are some coming

Thanks!
No hard info I've seen. I know the F-150 Lightning has an 80A charger as an option, so its not beyond stretch that 100A 25kW is reasonable.

TBH though, at some point L2 just becomes DCFC, and unless we're talking BIG batteries anything after 80A just seems overkill to me. Now, 100A...might make some sense in electrified agriculture and construction where you're looking for an overnight 300kWh recharge.
 
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SolarWizard

SolarWizard

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No hard info I've seen. I know the F-150 Lightning has an 80A charger as an option, so its not beyond stretch that 100A 25kW is reasonable.

TBH though, at some point L2 just becomes DCFC, and unless we're talking BIG batteries anything after 80A just seems overkill to me. Now, 100A...might make some sense in electrified agriculture and construction where you're looking for an overnight 300kWh recharge.
We install those chargers (through sunrun).
if the CT is actually going to have a 500 mile range, its gonna need a big pack and as I am building an off grid home in colorado next spring I would really like to fill it or mostly fill it when the sun is out.

I was asking for more than just myself though. Im more interested for our solar consumers. A whole bunch of them are looking at EVs in the next 2-4 years and i believe the best install is as future proof as possible
 

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I'm hoping Tesla will revert back to 72A chargers like our 2017/2018 S and X have. With the Cybertruck's larger battery pack, the additional charging speed could occasionally come in handy. It certainly won't be a deal breaker to have only a 48A charger though.
 

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anyone got any good info in the max onboard charger input?

We are currently testing a 25kW AC plug on a 100A circuit from (a manufacturer I can’t publicly name yet.)

any chance the CT will be able to accept this? I don’t have a list of vehicles that can currently handle this but I know there are some coming

Thanks!
The J1772 standard only supports up to 19.2kW, and Tesla’s adaptor (comes with the car that’s a replacement) supports those speeds. Not sure if Teslas can charge any faster than that with an AC charger.
 


Crissa

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The J1772 standard only supports up to 19.2kW, and Tesla’s adaptor (comes with the car that’s a replacement) supports those speeds. Not sure if Teslas can charge any faster than that with an AC charger.
And that's fast! That's probably over 50 mikes charged per hour or ten hours to full. And it's the rare person who uses a full charge of a long range every day and ends up at home each night.

-Crissa
 
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SolarWizard

SolarWizard

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And that's fast! That's probably over 50 mikes charged per hour or ten hours to full. And it's the rare person who uses a full charge of a long range every day and ends up at home each night.

-Crissa
Thats more than likely ~ 10-11hrs on the pack size I anticipate coming with a 500mile truck and a lot longer if its cold outside. The sun isn’t making good power that many hours even on 6/21 and sometimes people need or want to leave on short notice. For me specifically, pulling a trailer out that location means a really long stretch of no DC if I was heading south, sante fe NM would be the closest supercharger and thats 269 miles, crossing two grades which of course makes it unreachable without stopping somewhere to charge slowly making leaving at 100% all the more important.

I’m quite familiar with the 19.2kW cutoff on a J1772 but is the tesla connector limited to the same on AC?. I am looking at this from both my specific use case and edge cases for my consumers.
 
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Even half charge in the right area is going to require at least 20kw in solar panels, as well as at least 75kwh in batteries to pre-store the power while you are at work. Most likely you will need 25+kw and 110-120kwh of storage to power your house and a daily 250 miles on a Cybertruck. But hey if you have the money and are willing to spend it more power to ya.
 
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SolarWizard

SolarWizard

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Even half charge in the right area is going to require at least 20kw in solar panels, as well as at least 75kwh in batteries to pre-store the power while you are at work. Most likely you will need 25+kw and 110-120kwh of storage to power your house and a daily 250 miles on a Cybertruck. But hey if you have the money and are willing to spend it more power to ya.
ive got a very solid understanding of the tech thats required (see username) ive worked in solar for 18 years now, 12 of those owning what has become a very large business.
I was just specifically asking if anyone knew what the max rate the onboard AC charger will be able to handle.
 

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Thats more than likely ~ 10-11hrs on the pack size I anticipate coming with a 500mile truck and a lot longer if its cold outside.
Only takes that long after driving 500 miles and come home empty, then need 100% the next day. Not a very common way to use a vehicle. Usually you return with at least 10% charge and only need 80% the next day. So maybe 140 kWh needed. That’s about 8 hours charging with a 19.2 kWh charger (assuming a bit of taper). Most people would only rarely need that.

Even my current setup with 10.5 kW setup should get me plenty and on the rare days I need more, I just hit the first supercharger a bit sooner.

The sun isn’t making good power that many hours even on 6/21 and sometimes people need or want to leave on short notice. For me specifically, pulling a trailer out that location means a really long stretch of no DC if I was heading south, sante fe NM would be the closest supercharger and thats 269 miles, crossing two grades which of course makes it unreachable without stopping somewhere to charge slowly making leaving at 100% all the more important.
Yeah, there are definitely exceptions. But if your truck is sitting charged at 80% and you need to get to 100%, you likely aren’t getting 19.2 kW when you are topping off regardless. Tapering can be a bitch.

I’m quite familiar with the 19.2kW cutoff on a J1772 but is the tesla connector limited to the same on AC?. I am looking at this from both my specific use case and edge cases for my consumers.
I don’t know about that, you’d need to look at the specifics.
 


WildhavenMI

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ive got a very solid understanding of the tech thats required (see username) ive worked in solar for 18 years now, 12 of those owning what has become a very large business.
I was just specifically asking if anyone knew what the max rate the onboard AC charger will be able to handle.
Also in the solar industry here. To your comments about pack size, there have several arguments discussions about estimated pack size and people smarter than I on that front tell me my worries about a 175+kWh pack are overblown and it'll be ~120kwh or so even for LR variants. Whether or not I believe them, lets take 150kWh as a compromise.

You're right - that's a 19 hr charge time on 80A at 240v. Something more robust would be beneficial. I question the regular need for it and can't think of any personal situations where it would be needed and I woudln't be DCFC'ing anyway, but that's just me. I'm sure there will be a need, esp for semi, HD trucks, etc.
 

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Thats more than likely ~ 10-11hrs on the pack size I anticipate coming with a 500mile truck and a lot longer if its cold outside. The sun isn’t making good power that many hours even on 6/21 and sometimes people need or want to leave on short notice. For me specifically, pulling a trailer out that location means a really long stretch of no DC if I was heading south, sante fe NM would be the closest supercharger and thats 269 miles, crossing two grades which of course makes it unreachable without stopping somewhere to charge slowly making leaving at 100% all the more important.

I’m quite familiar with the 19.2kW cutoff on a J1772 but is the tesla connector limited to the same on AC?. I am looking at this from both my specific use case and edge cases for my consumers.
Not alot longer in the cold: It'll only need to steal enough heat to keep the battery stable, and there already was waste heat.

And yes, Tesla limits AC to the same 80a.

-Crissa
 

Crissa

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Yeah, there are definitely exceptions. But if your truck is sitting charged at 80% and you need to get to 100%, you likely aren’t getting 19.2 kW when you are topping off regardless. Tapering can be a bitch.
There's not much tapering for modern packs at this level. It doesn't taper below 20kW until 98%, and that assumes a pack heated by Supercharging.

-Crissa
 

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If you are wanting to charge an EV fast and you are talking about Solar Installation, then get a bunch of batteries and hook it to a DC charger. It will always be faster, it will be more efficient (no DC to AC to DC conversion train), and would let you charge and store power from sunny days to less sunny days and nights.

If you need to charge in a short time, DC is always going to be the best solution.
And if you are installing large solar arrays, setting up a battery and a DC to DC (to go from your battery pack storage to the EV charging specifications) should still be more efficient than round trip from DC to AC to DC that you would be talking about for a large, off grid solar system.
 

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If you are wanting to charge an EV fast and you are talking about Solar Installation, then get a bunch of batteries and hook it to a DC charger. It will always be faster, it will be more efficient (no DC to AC to DC conversion train), and would let you charge and store power from sunny days to less sunny days and nights.

If you need to charge in a short time, DC is always going to be the best solution.
And if you are installing large solar arrays, setting up a battery and a DC to DC (to go from your battery pack storage to the EV charging specifications) should still be more efficient than round trip from DC to AC to DC that you would be talking about for a large, off grid solar system.
Is there a household grade DC to DC charger that works with Tesla?
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