4680 Structural Battery Pack explained - How does it work?

[JBee]

Just for completeness:

If we go 12% more to 28Ah cells and 296Wh/kg we get a 138kWh with around 390mile range from the same pack @ the same 333Wh/mi the current DM has for 340miles. That would be exactly what I would want for my DM!

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[GhostAndSkater]

Just for completeness:

If we go 12% more to 28Ah cells and 296Wh/kg we get a 138kWh with around 390mile range from the same pack @ the same 333Wh/mi the current DM has for 340miles. That would be exactly what I would want for my DM!

Thanks for confirming my hypothesis

Also, tires, lot's of people aren't talking about them, on Rivian there is a ~15% range increase from A/T to H/T, ok that they are a bit smaller

We might see 390 miles with more range oriented tires, and from your better cells, likely gen 3 4680s, 440 miles

 

[cvalue13]

Also, tires, lot's of people aren't talking about them, on Rivian there is a ~15% range increase from A/T to H/T, ok that they are a bit smaller

We might see 390 miles with more range oriented tires, and from your better cells, likely gen 3 4680s, 440 miles

you’re, I think, incorrectly assuming that the Ct range data is on the Goodyears?

near zero chance those range numbers aren’t instead on the street-oriented Pirellis, not to mention the lighter base wheels


and yes, just like with Rivian, choosing the Goodyears/premium wheels over the Pirellis/base wheels could have up to a ~30% range hit at sustained 75mph driving

Rivian R1T on Street Tires Went 60 Miles Farther in Our Highway Range Test​

That’s almost a 30 percent improvement over a previous truck wearing all-terrain tires.​

​

The 15% you cite is at EPA conditions, which averages 43mph

We might see 390 miles with more range oriented tires, and from your better cells, likely gen 3 4680s, 440 miles

the CT tires have an H weight rating and a 130mph speed rating, but at 35” size.

Pirelli (and Goodyear) custom/produced these tires, in part because neither manufacturer built such a tire prior to the CyberTruck.

the Pirelli’s are the ELECT series, specifically made for increasing range on electric vehicles.


Which is all to say, people have talked about tires quite a lot, and aren’t necessarily overlooking it - but instead feel it’s clear the range figures are already on street-oriented tires, and ones that won’t be easily upgraded to be more range-friendly anytime soon (eg absent improvements in tire tech).

And, people assuming these range figures already factor in the Goodyear tires and premium wheels are likely in for some disappointment.

I was hoping to see Tesla brake-out the range effects of the tire/wheel selections, and maybe they will at configuration.

but until then, the fact that Tesla hasn’t broken these out already to flash around, leaves me confident they’re showing only the optimum case scenario

 

[scottf200]

17:19 here:

 

[scottf200]

192S 7P = 1344 cells
192 * 4.25 volt = 816 volt

Quick playing around in a G-sheet

Via YT video below:

EPA website below confirms the Voltage architecture is 800 Volt. Also, we get more info that the Battery Energy capacity is 150 Ah and Specific Energy is 170 Wh/kg.

 

[Freemarket]

Interesting video. Watching tear downs on Teslas w the Munro boys is the best.

I’m honestly glad to know that Tesla is not likely going to add more range suddenly via more batteries in the pack w the space provided. Rather, Tesla did it to provide adequate protection to the pack for an off road vehicle, so impingement from outside forces such as rocks, stumps etc, isn’t likely to have you’re battery pack exploding while you high side a line your buddy told you looked good.

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