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If they did that the cost for the 70D would be higher. As it is now the increase is very modest.
Bangor Bob
Member
deonb
Active Member
In that case, why wouldn't the 70D pack be 14 modules of each 6 series of 70 cells? It doesn't simplify manufacturing, but at least the math works out.
The 240-mile range is the real puzzle. It just doesn't make sense.
270-240=30
240-214=26.
(S60 range is for a RWD car, unmodified from original 2013 rating, even though Tesla has apparently reduced weight since then. If we add 5 miles of range for AWD with sleep, then the idea of 240 miles of range for the 70 isn't really that weird, especially given the EPA test bias towards acceleration over steady driving, and 55/45 city/highway which means that weight significantly affects ratings.)
Assuming Tesla fit the 85kwh pack and software limit it to 70 (yes margins matter, but so does improved efficiency and product rationalisation), would that mean that you could always do a full charge as that would only charge 70 of the available 85kwh capacity? The knowledge that you could pay (yes with a premium), for the extra 15kwh would be attractive and "ease the entry point". I wonder what proportion of the 40's still are 40's and how many upgraded to 60?
thegruf
Active Member
From this thread and the 329hp power of the 70D
Does the 70D have new batteries and will the 85D become a 100D? - Page 3
I think Cottonwood has it:
same structure as the 60D pack but with a few more cells/module (improved cells would likely yield same voltage/cell but higher power density)
Does the 70D have new batteries and will the 85D become a 100D? - Page 3
I think Cottonwood has it:
same structure as the 60D pack but with a few more cells/module (improved cells would likely yield same voltage/cell but higher power density)
deonb
Active Member
If you're going to be making unfounded and random assumptions with no basis in reality, then you may as well assume that the 85 is secretly a 130 and recharge a 85 to a full charge every time as well.
The 40 shipped with a 60 battery because they already sold some 40's which they couldn't roll back. However, Tesla decided that they didn't actually want to build 40s. So they took the loss, announced that 40s were really going to be 60's, and at the very same moment they retired the product so that nobody could order more of them. The 70 is not retiring - it wouldn't make sense for them to perpetually take a loss.
I didn't explain myself very well. I didn't mean to make an assumption as such, no doubt there will some sort of official or "in the know" pronouncement on the actual battery pack.
What I was clumsily trying to ask was; if the pack WAS an 85kwh pack software limited to 70kwh, would a "full charge" be 70kwh not 85kwh?
Or probably what I should have asked was; with the 40kwh version, did a "full charge" just put 40kwh into the battery so doing a reduced 85% charge wasn't needed to preserve longevity of the battery pack?
Sorry for any confusion.
What I was clumsily trying to ask was; if the pack WAS an 85kwh pack software limited to 70kwh, would a "full charge" be 70kwh not 85kwh?
Or probably what I should have asked was; with the 40kwh version, did a "full charge" just put 40kwh into the battery so doing a reduced 85% charge wasn't needed to preserve longevity of the battery pack?
Sorry for any confusion.
llavalle
Member
deonb
Active Member
The right part of the slider on the 40 is inaccessible out unless you pay for the upgrade.
You can't set it to "full charge". (You can't set it to 85% charge either).
Imagine a 60, and never moving the slider past the 66% mark. That's exactly a 40. There isn't any indication in the car that it has a full charge at 40. Even the little battery icon will only show a partial charge.
Johan
Ex got M3 in the divorce, waiting for EU Model Y!
Wow. Tesla sure is teasing the 40 owners every day. "Don't you want to unlock your battery?" "No, really, you should unlock it"
Clprenz
Member
in other words they are letting supply shift to new cells. like they did now for performance seats (Limiting it to one car- then to all)
Here are similar situations:
- AWD (Getting it ready for X)
- Alcantara Headliner
- Old performance seats
- New Performance seats
and probably somethings I can't remember
deonb
Active Member
You weren't implying that they were supply constrained - you were implying the were Guiney-pigging untested new hidden technology on the 70 until they get real world data.
They've never done that before.
On every announcement people hope and speculate that they are using some magical never-before published technology for scenario X, Y or Z, which is possible that they may do one day, but there is no prior history of them doing that.
Why is this even a discussion? I'm confused that Tesla isn't providing this information...and that buyers aren't demanding it to help with their buying decisions.
thegruf
Active Member
It's all speculation for sure, but no harm in that.
However I disagree, no new cells.
Several discussions on here showing valid configs of existing battery tech to get to the 70KWH, furthermore they are supported by the apparent motor power.
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