Cybertruck 1000V Architecture + V4 Supercharging Confirmed!! ⚡️ "It's Going to be Used for Cybertruck Too" - Elon Musk

[samroy92]

https://www.pdbattery.com/fast-charge-battery.html

Fair, I stand corrected on finding a fast charging battery. I'd love to know what cells they are using, how hot the cells get, and the data sheet. Unfortunately there's no data sheet or specs because this is a random Chinese company. Call me skeptical. Do you have any other examples? I appreciate you finding one!

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[Dids]

True about heat dissipation but the 5x mass also means also means it takes longer to hit the saturation point of heat before reduction in charging speeds. So not just heat dissipation but also heat saturation. Something to ponder on.

The 40mm electron path in the 4680 also means 40mm path for heat conduction to the can.

 

[Dids]

Fair, I stand corrected on finding a fast charging battery. I'd love to know what cells they are using, how hot the cells get, and the data sheet. Unfortunately there's no data sheet or specs because this is a random Chinese company. Call me skeptical. Do you have any other examples? I appreciate you finding one!

A123 Systems makes a nano phosphate cell 2 towns over from me that has a 5C charge rate. I only includes a screen shot because tech document is very long and charge rate is way into it. And those packs are not actively cooled.

 

[charliemagpie]

I believe Tesla also has a generous reserve backup of batteries.

This 500-mile range is fully gettable without worrying about running out of juice at 501 miles. Maybe the true range is 525+

We can add those few percentages leftover from that 500 run as well.

Of course we don't want to run out, but nice to know it can be stretched closer to 550 than 500.

Take that Elon Musk !!

 

[samroy92]

A123 Systems makes a nano phosphate cell 2 towns over from me that has a 5C charge rate. I only includes a screen shot because tech document is very long and charge rate is way into it. And those packs are not actively cooled.

I found this datasheet: https://www.batteryspace.com/prod-specs/6610.pdf

I know these cells -can- charge at 5C, it's just going to drastically reduce the cycle life. The difference between a Cybertruck battery lasting 300k miles or 100k miles could be the difference between 3C and 5C. I'm trying hard to find data on this but I simply can't. Even A123 Systems doesn't have anything on Cycle life of a 5C charged battery (even nano phosphate). In the data sheet it says it has >1000 cycles at a 20A discharge rate:

Cell Capacity

Their cell cycle life performance chart has a maximum charge rate of 3A:

Thats a 1.2C charge rate, and of course it lasts > 1000 cycles. What would we see if it was recommended fast charge of 10A, how would that affect it's cycle life? And Nominal Capacity?

This is what happens:

 

[Dids]

I found this datasheet: https://www.batteryspace.com/prod-specs/6610.pdf

I know these cells -can- charge at 5C, it's just going to drastically reduce the cycle life. The difference between a Cybertruck battery lasting 300k miles or 100k miles could be the difference between 3C and 5C. I'm trying hard to find data on this but I simply can't. Even A123 Systems doesn't have anything on Cycle life of a 5C charged battery (even nano phosphate). In the data sheet it says it has >1000 cycles at a 20A discharge rate:

Cell Capacity

Their cell cycle life performance chart has a maximum charge rate of 3A:

Thats a 1.2C charge rate, and of course it lasts > 1000 cycles. What would we see if it was recommended fast charge of 10A, how would that affect it's cycle life? And Nominal Capacity?

This is what happens:

These are just random high charge rate batteries. I'm not saying that cybertruck will do 1mw continously. But it probably will up to 75% or so, we just don't know enough and have to go on what they say.
To reiterate...
Cybertruck will have 1MW charging -Elon
V4 supercharger is 1MW. - charger cable slide
NACS is the plug for V4 - NACS spec sheet
People can disagree but this is what they said....

 

[samroy92]

Cybertruck will have 1MW charging -Elon

Is there a timestamp on this? I need help lol

 

[Dids]

Is there a timestamp on this? I need help lol

27:43. Start watching at 26:00 for context. The slide behind them says 1MW+ V4
This is coming to our superchargers next year.

 

[samroy92]

27:43. Start watching at 26:00 for context. The slide behind them says 1MW+ V4

Thanks for providing. This confirms my prior, Elon did -not- say Cybertruck max charging rate was 1MW+, he confirmed that Cybertruck will use the v4 supercharging tech. It means it can go higher than 250kW. Time will tell. 300-400kW I predict!

 

[ED_SFO]

I wonder what the range is without any trailer and what the 0-60 is too. I would think in the 4-5 second range which is crazy lol

 

[Don Kedick]

I believe it was quoted as 5 seconds to sixty unloaded. Also really curious how far you can drive semi unloaded.

 

[Dids]

In

Thanks for providing. This confirms my prior, Elon did -not- say Cybertruck max charging rate was 1MW+, he confirmed that Cybertruck will use the v4 supercharging tech. It means it can go higher than 250kW. Time will tell. 300-400kW I predict!

If we assume a 100kWh pack @ 1000v with 25Ah per cell than pack will need 4 parallel strings @4 volts per cell 250 cells in a string . That's 1000 cells for a 100kWh pack.
To do 500 miles CT would need to do 200Wh /mile. No way it's that efficient.... so pack will need to be larger or cell voltage is higher than 4v.

@ 5v a 1000 cell pack would have 5 strings with 200 cells for 125Ah and CT would do 250Wh /mile.

If we skip ahead to a reasonable efficiency of 500Wh/mile than CT needs a 250kWh battery to go 500 miles. 250Ah is 10 parallel strings.

My point being. 1000A/ 10 is 100 Amp or 4C which is exactly what Tesla claims they charge at.

I don't actually think that CT pack will have 10 strings of 200 cells. I think new high nickel chemistry is here. Cell voltage is probably much higher 10 volts or so.... or they are putting 50Ah in a cell. In any case new chemistry is here and 1 MW charging is entirely possible.

 

[Crissa]

My 22kW wall box has been allready installed (2021) and is waiting for CT.
Doing 1/2 of the work, since MY and M3 can only handle 11kW ...

How often do you need to fill the battery that you need to charge over 66mph at home?

-Crissa

 

[samroy92]

That's 1000 cells for a 100kWh pack.
To do 500 miles CT would need to do 200Wh /mile. No way it's that efficient.... so pack will need to be larger or cell voltage is higher than 4v.

I've long been predicting the Cybertruck pack will have around ~1520 cells (see my thread in the battery & charging section for in-depth). I've also long been "assuming" around 400wh/mi of efficiency ~2.5miles per kWh.

I have also long been predicting our first long range Cybertruck will be between 350-420 miles of range (140kWh - 168kWh).

If we skip ahead to a reasonable efficiency of 500Wh/mile than CT needs a 250kWh battery to go 500 miles. 250Ah is 10 parallel strings.

Even simpler than this. Assume 90-110Wh per cell by the time the CT is in production. Current MIT Model Y is 86.5Wh. So 90-110 is assuming a lot of chemistry advances and yield improvements!!

Then assume 1520 cells * 110Wh per cell = 167kWh

My point being. 1000A/ 10 is 100 Amp or 4C which is exactly what Tesla claims they charge at.

400kW / 167kWh = 2.4C
500kW / 167kWh = 3C

or they are putting 50Ah in a cell. In any case new chemistry is here and 1 MW charging is entirely possible.

Any smaller battery back and you will see less maximum power from the 500kW predicted. Any Tesla "throttling"/"limiting" of charge speed will be yet another tailwind.

1 MW Cybertruck charging speed is not realistic! And Elon did -not- say it. He said Cybertruck has v4 supercharging and this is AWESOME

 

[Dids]

I've long been predicting the Cybertruck pack will have around ~1520 cells (see my thread in the battery & charging section for in-depth). I've also long been "assuming" around 400wh/mi of efficiency ~2.5miles per kWh.

I have also long been predicting our first long range Cybertruck will be between 350-420 miles of range (140kWh - 168kWh).



Even simpler than this. Assume 90-110Wh per cell by the time the CT is in production. Current MIT Model Y is 86.5Wh. So 90-110 is assuming a lot of chemistry advances and yield improvements!!

Then assume 1520 cells * 110Wh per cell = 167kWh



400kW / 167kWh = 2.4C
500kW / 167kWh = 3C



Any smaller battery back and you will see less maximum power from the 500kW predicted. Any Tesla "throttling"/"limiting" of charge speed will be yet another tailwind.

1 MW Cybertruck charging speed is not realistic! And Elon did -not- say it. He said Cybertruck has v4 supercharging and this is AWESOME

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