It sounds like that is exactly what will happen. Most owners will never see this, as mentioned here:
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Supercharging Speeds: Who, what, where, why, and when
- Thread starter wk057
- Start date
aerodyne
2 of 3 EV's - Defect Free!
I'm not an idiot, rather just naive at the time. I assumed that Tesla would not do anything so underhanded, so I originally believed the times estimator must be out of calibration on my car.
Tesla is playing the time honored sausage factory game, adding a little sawdust along the way.
I can play too. Downloaded the EQS and Lucid brochures yesterday...meanwhile going to start aggressive SuC on my nose cone car.
Read wk057's post again. His testing showed that Tesla's new limits are too conservative.
Thanks wk057 for more updates. If Tesla was the company it was before, it would silently give everyone a new pack and it will still probably not affect their bottom line much given how many money they are making this year. Heck they can just sell all there BTC and use the profit to fix all those old cars. But sadly I guess Musk is trying to hold on to his title as richest man. That would not be good for his net worth when people hear about him giving early adopters free battery pack replacements.
...if they were already being implemented for everyone across the board. They're not though. I have a 2014 S85, and if I hadn't read forum threads about it here, I wouldn't be aware of any Supercharger slowing. It's not happening to my car yet, (or just to a very small barely noticeable degree). I just did an 1,800 mile vacation and still get over 110 kW when the battery is low, which is just about as good as when it was new. A lot of people will not notice this if it hasn't gotten bad enough to get lowered much yet.
I got 130kW in my P85. When the Car was new it was only 116kw. But guess what? Adding 40kWh to the battery increased from 26minutes to 35min. Its the fast tapering of the chargerate, thats so annoying
As I said, most people probably will not notice it. People who are meticulous enough and obsessively looking at it that closely to use precise numbers like 26 minutes are not "most people". I go walk away and do something and when it's ready, it's ready. I don't pay attention to how many minutes it was.
Interesting. I wonder with my “a” battery that was always limited to 90 kW whether this risk even exists… and supposing I am probably unnecessarily “chargegated”. Double whammy!
aerodyne
2 of 3 EV's - Defect Free!
Like most 85 packs, been charge gated.
30-80% went from 30min to 45min in 2019.
Just now however, saw 80Kw at 40%, and 65kw at 50%, 51Kw at 60%.
Seems like I am approaching the "BH rule" of 120-130 (SoC plus Power)
Perhaps the algorithm is taking into account my mild driving habits and lack of SuC.
Or it could be that I try to avoid getting the pack too warm or too cold. Range mode keeps the pack warm with out pack heater on, 107 deg F seems to be the sweet spot, no AC comes on.
30-80% went from 30min to 45min in 2019.
Just now however, saw 80Kw at 40%, and 65kw at 50%, 51Kw at 60%.
Seems like I am approaching the "BH rule" of 120-130 (SoC plus Power)
Perhaps the algorithm is taking into account my mild driving habits and lack of SuC.
Or it could be that I try to avoid getting the pack too warm or too cold. Range mode keeps the pack warm with out pack heater on, 107 deg F seems to be the sweet spot, no AC comes on.
dark cloud
Active Member
Or you just got one of those "goldilocks" charge sessions, which happen now and then under ideal conditions. And then a week later on the same firmware you get 55 kW at 40 % soc when you think the temperatures should be exactly the same.
aerodyne
2 of 3 EV's - Defect Free!
Maybe. Only more charging will tell.
This last session was on a V3 for what is worth...
The V3 chargers have additional thermal sensors in the charge handle, which I believe they utilize in the latest firmware to detect anomalies at the charge port to avoid some related default slowdowns with older charge ports.
Only a couple of years of data for the 100s, and maybe 18 months for the Model 3. Promising overall.
For those the BMS algos for calculating fast charging variables are much less strict than other packs. The Model 3 algos seem to be the most liberal out of them all.
aerodyne
2 of 3 EV's - Defect Free!
See my signature 2020.48. something.
I avoid updates to save my ailing MCU1, which Tesla refuses to replace.
cousin_IT
Face provided by boredhumans.com
I read in other forum posts that Tesla is using a new battery design (1014116-00-B) to replace all the other batteries that is actually 90 kWh and software locked to lower capacities depending on the car's original capacity (see this and this post). If there's indeed a newer chemical design that would not be prone to the issues you described I would expect that these newer batteries would be able to be superchargerd without the restrictions you mentioned. Did you see any evidence of this?
I have a 1014116-00-A, which is a true 85kWh. Peak charge is not higher, which may be due to the fact that it is 350V and there is a max Amp draw for the car due to the wiring. But it stays at about 100 kW charging to until 50%.
Yeah the problem with the newer 85 packs that are based on the 100-type modules is that they're 350V max (~300V nominal) and require higher current for the same power. Especially on older S's, the hardware wasn't designed for ~15% higher sustained current.
S85 "classic" 400V vs S85 14of16 100 pack 350V charging comparison
-> Charging Compare
I'd take the new 350V battery w/o asking further questions.
-> Charging Compare
I'd take the new 350V battery w/o asking further questions.
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