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but there were some decent gaps in the audio / muffled noise.
The assumption is the 85 pack weighs 1200 pounds
@Troy as already asked, where have you got the information of weight reduction with the new 2170 cells?
It is based on Elon and JB's statements HERE, during the Q2 2014 conference call. They said the Gigafactory cells will have higher energy density because of changes in the chemistry. Listen to the audio. Energy density means energy per volume and energy per weight.
In addition, above I said, "the assumption is the 85 pack weighs 1200 pounds (544 kg)." After I said that, I found THIS data source that shows 545 kg for the 85 kWh pack.
@Topher. I don't see your messages because you are on my ignore list. You don't need to ask me anything. I don't care.
To others: Don't go around downvoting people if you want to ask them questions later. HERE is exhibit 1. The ironic thing is, my prediction about the 75 kWh battery in that message turned out to be true. I also expect to be right about the 55 kWh smaller battery. I usually get downvoted by spam users who are detached from reality. These are the kind of people that will repeatedly support some unrealistic idea.
Interesting that this thread was started one year ago and still we have 18650 cells in the S and the X. Will 2018 be the year that this changes ?
18550s have proven their durability on the field quite well. Degradation (or lack of) has surpassed most of our expectations.
On the other hand 2170 has not seen a single summer yet.
Just saying.. watch out what you wish for.
They can run the same chemistry in 2170 as they do in 18650, so the difference isn't in durability or degradation unless there are internal changes as well. the 2170 offers 30+% more capacity per cell, and the increase in volume is less than that so that's where the gains come from even with no alterations in cell chemistry. It's just a better way to package cells. Since the 100kwh battery was effectively the most capacity that could be packed in the S/X battery footprint without finding a chemistry that is just as durable while also more energy dense, the shift to 2170 makes it easier to increase that density without needing to rely on chemistry differences. Early 90 kwh packs showed that even promising differences in chemistry can prove less durable compared to the previous cells over time.
Also, Tesla / Panasonic didn't invent the 2170, it's years old (2015) and was released by Samsung/LG specifically for EVs, and has seen several summers in electric vehicles already.
SEC filings from years ago showed the 18650 contract ends in 2018, it will definitely be this year that S and X are refreshed to hold 2170 cells. Tesla is already asking the EPA to reduce its rated range on the Model 3 to keep it lower than the Model S 100 battery, so they are in a pInch to actually get the premium cars to have a better real world range before that knowledge becomes commonplace. People expect the flagship cars to have the newer technologies, and both the battery and the motors in the S/X are outdated tech compared to other cars inTesla production now.