Mrbrock
Well-Known Member
Maybe they peak charge for 2 more minutes before tapering? Shaving 5 minutea off a 10-90 charge? Eh… $215/mile vs $191/mile. Is 3-5 minutes saved per charge worth an 8% price increase on a per mile of range basis?My understanding is that the structural battery allows about a 20% higher packing density. '4680' pack is shorthand for structural battery. The weight savings is expected with a structural battery.
Second, I do expect faster charging from a 4680 cell than from 2170 cell due to better heat dissipation. It is this performance characteristic I was thinking of when I said that 4680 packs can command a price premium.
Lastly,
If it is true that 4680 structural packs have a 20% packing advantage over current 2170 designs, and current 2170 cell packs in the LR are 330 EPA miles, then Tesla could produce a 330*1.2 = 396 EPA mile XLR Model Y in a 4680 structural pack design.
Are you paying attention to the thread and what is being produced from Austin? Or are you stuck believing all the battery day hype still? Please step away from battery day. Here is the reality of 4680. A 69kwh 279 mile range Model Y with 4680 that is only 50 lbs lighter than a 82kwh 330 mile range 2170 model Y. You are expecting to go from 279 miles to 396 miles (a 117 mile/42% increase) with 20% denser cell packing? That can’t be done because it is already 4680 based.
Please read the rest of my post above (that you quoted the first paragraph). The math is simple. Based on what Tesla is preparing to sell (as many as they can produce), you’d need over 100kwh of 4680 to get your 400 miles of range. There is additional weight with 4680 so the cells may be packed closer but there is more weight somewhere (thicker walls needed for structure, more cooling, cells not as energy dense as predicted). The information is there. It is readily accessible. Please stop ignoring it.
Doubtful. Going from 150 to 250 didn’t cut times by 40%. It’s all about ramps and tapers. It may peak for longer but once the cell is hot, it will take more to cool it. Which means keeping speeds in check.Same… The only thing I can see going for the 4680 SR is if it can charge 2X as fast as the 2170. Otherwise it’s a terrible deal.
Very wrong. The old SR was single motor RWD with a 50kwh battery pack. This is a Dual Motor AWD Standard Model Y with a 69kwh pack. SR RWD is 4.88 mi/kwh, LR AWD is 4.02 mi/kwh and SR AWD is 4.04. But the relation between additional batteries and addition range is no linear due to added weight.The new SR has 279ish range. The old SR I belive was 245ish. About 14% more range. So the new LR could potentially have about 375ish range. I could be wrong obviously
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