ajdelange

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Probably not. The current cars would have to be reprogrammed to ask for more than they do now and while that could be done the present limit of about 1C insures good battery longevity.
 

Macgreiner

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Tesla is upgrading their V3 Superchargers to 324 kW, roughly a 29% speed increase. That will likely only increase Supercharger stops by a minute or so due to tapering, but a minute saved is a minute earned… or something like that. I’m not sure which vehicle’s this will affect.
I think that is quite a conservative estimate. For people like me who regularly roadtrip, I would think a 5-10 min time saving should be expected especially when charging from 10% - 80% which is how I most often link charging sessions. I often see 250 kW - so assuming 2070 cell architecture can handle the extra current and heating - this will be substantial.
 

ajdelange

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The V3s deliver 250 kW peak and to a car with a 100 kWh battery that's 2.5C peak and those cars seem to taper for an average rate of 1C - 1.2C (no real data base here - just my impressions from my own charging sessions and remarks posted here and elsewhere). Now 324 kW represents 3.24C on a 100 kWh battery but it is the battery that determines how fast it gets charged and the current crop of cars will continue to charge at 1 - 1.2C. But a CT with a 180 kWh battery is a different animal. 324 kW is only 1.8C peak so there is no way the average charge rate can exceed that. The question is, of course, what average rate, less than 1.8C will the CT (presumably 4680 cells) tolerate? If it's 1.2C then the beefed up chargers will still require half a minute to add 1% SoC (20 - 80% in 30 min). If it is higher than that then less. But to get to 15 min requires 2.4C and even this new charger can't do that. If it ran full bore for the whole session (which it won't) charging time for 20 to 80% would be 20 minutes.
 

Ogre

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I think that is quite a conservative estimate. For people like me who regularly roadtrip, I would think a 5-10 min time saving should be expected especially when charging from 10% - 80% which is how I most often link charging sessions. I often see 250 kW - so assuming 2070 cell architecture can handle the extra current and heating - this will be substantial.
Depends largely on the batteries and the charge controller on the car. The newer Model S and Model X both charge faster and taper slower so it’s likely they will benefit more than older cars.

They measured a 2020 Model 3 on the 250kW chargers versus the older 150kW chargers and the difference was a mere 2 minutes for a 0-80% charge cycle of I think ~35 minutes. The problem is tapering kicks in quite quickly. After the first 5 minutes or so they are both charging at the same rate. Since the limiting factor is the batteries accepting charge on the cars.

You are almost certainly correct with regards to the Cybertruck though, I suspect the bump to 324kW will make a significant difference for Cybertruck owners since they have so much bigger batteries and hopefully the newer battery chemistry that can tolerate faster charging.
 


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Using the model 3 and Y with their smaller pack have a peak charge just north of 3C which tapers to approximately 1C by 80%.

If we apply that charge rate to my guesstimate of 200kwh that would be 600kw that the pack can handle. 324 would come out to 1.6C and if it has the same profile as the model 3/Y it should be able to hold that to between 50 and 60% charge.
 
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I could see it benefiting cars that can charge at 250W. Maybe it can stay at that 250W for a longer period but my guess is this will benefit cars that will have 4680 batteries like the Cybertruck, Model Y from Texas, and the Tesla Roadster.
 

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The semi's megacharger port has been photographed previously:
Tesla Cybertruck BREAKING: 324kW Tesla Superchargers Are Coming Later This Year! [Up From Current 250kW] up-close-look-at-tesla-semi-megacharger-port-video

Now I just need a "Megacharger->Cybertruck" converter. Full charge in 3 mins!
 

happy intruder

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No, that's how it works (and you'll only get that power level if certain conditions are met, such as type of car/battery pack rev, low state of charge, and adequate battery temperature)...

There is a charging curve built in that tapers from maximum power to prevent overheating the battery...
no matter what I do, warm battery and 20SoC still requires a 40-45 min charger time to 90%.......2020 Model S, "F" battery, 14750 miles
 

happy intruder

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Tesla is upgrading their V3 Superchargers to 324 kW, roughly a 29% speed increase. That will likely only increase Supercharger stops by a minute or so due to tapering, but a minute saved is a minute earned… or something like that. I’m not sure which vehicle’s this will affect.

It’s likely more interesting for the Cybertruck and vehicles with bigger batteries because they linger at the lower percentages longer so perhaps it’ll help us by more than just a minute or two.

https://insideevs.com/news/562786/report-tesla-v3-superchargers-324kw/

One other side-note. The Cybertruck may have newer “Tesla Silicon anodes“ which will eliminate much of that tapering. Then we’d get to enjoy the full 324 kW for most of the charging cycle which would be awesome.
and what would be the maximum for home charging
 


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and what would be the maximum for home charging
Likely unchanged. A high speed home charger would be extremely expensive.

Right now it tops off at 48Amps (60 Amp breaker) and it’s likely that’ll be tops for a while.

That’s something like 250 miles added overnight. More than enough to get you to the nearest Supercharger if you want to drive a long distance 2 days in a row.
 

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swengl

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If the 4680 cells handle the charging as expected, increasing the max output of the SuCs should result in a faster charge for the 4680s (and beyond). The "tabless" design of the 4680 is the part of the secret sauce that will make that battery geometry popular and will likely encourage the increased adoption of EVs (and the reduction of the time it takes to SuperCharge).
 

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Likely unchanged. A high speed home charger would be extremely expensive.

Right now it tops off at 48Amps (60 Amp breaker) and it’s likely that’ll be tops for a while.

That’s something like 250 miles added overnight. More than enough to get you to the nearest Supercharger if you want to drive a long distance 2 days in a row.
yes....I currently have 48a with 60a breaker....use it for the 3 and S
 

swengl

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Home charging is maxed out by the circuit available and the bulky charger built into your car, which is usually <12kW.

https://www.tesla.com/support/home-charging-installation/onboard-charger

-Crissa
In regards to home charging, you would never want to exceed about 80% of the maximum breaker rating. I installed a 100A breaker for my Gen1 home charger, which will allow up to 80A for my S85D which has the dual chargers onboard. Honestly though, I typically scale it back to 65A or so in the summer because the HPWC's cable gets HOT when you go the full 80A.
Sponsored

 
 




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