Wiki Sudden Loss Of Range With 2019.16.x Software
- Thread starter Dutchmeeuw
- Start date
Ferrycraigs
Member
To me this just says the chances of Tesla solving our problems is close to zero. Not good.
Agree. And that's why they decided to fight it in the court in hope of winning.
I think they have known about the battery issue for much longer than we have believed. I believe the decision to eliminate the kWh designation and go with the long, mid, short range badges, the battery warming provision, the multiple fires, the battery capacity capping, and the charge rate throttling are all somehow interrelated. The update was not coincidental. It was "their" way of fixing things, through "software-can-fix-hardware" mentality along with a tremendous amount of arrogance.
That's my take.
When the local service center recommended they replace my battery due to battery gate and my complaints and recent purchase of the car in May they had to get approval from corporate so this is very true.[QUOTE said:
From all the information I received solely from Tesla for my 2013 S85, I would be led to believe that my Supercharging sessions should be faster as a result of other Tesla charging faster at V2 & V3 stations, and the destination pre-warming feature for the battery (June 2019 software release notes).
During July 2019, news reports were saying that Tesla, out of an abundance of caution, was altering the BMS to make the battery more stable after a fire in China and Belgium. Subsequently many 85kW battery pack vehicle owners started reporting a sudden drop in range, longer Supercharging sessions, slow and sooner tapers, and the top-end capacity dropping on each individual battery cell. It was assumed that slower charging, lower thermal stress while charging, and lowering the capacity of the battery would prevent battery fires; it was also assumed that perhaps Tesla was concerned that without such restrictions the battery would degrade and warranty claims were feared.
According to an Engadget article yesterday, NTHSA started a probe into Tesla's software update limitation and stated that Tesla should have issued a recall on 2,000 suspected 85kW-equipped vehicles instead of virtually limiting the entire fleet. The article implies that Tesla is still working on a fix, but has given no details.
NHTSA reviews claims Tesla should have recalled 2,000 cars
Tesla's software update that resulted in battery capacity loss is under probe by NHTSA - Electrek
The communication from Tesla has been extremely poor and most of us rely on the aggregate of owner experiences on this forum. It would be nice for Tesla to keep us in the loop instead of telling us "the battery degradation is within normal range." Technically they are correct because the range drop is not as a result of degradation...it's a result of a software restriction on the battery cell capacity and BMS.
Since I'm not a Tesla apologist, I can not agree more with your post. Thank you!
BigNick
Disaffected Member
Latest TM-Spy (today) at 100% SOC about a minute after unplugging from the HPWC. This is on V10 (2019.32.11.1):
Previous 100% from July 8 (V9, not sure if exact version but definitely 2019.16.xx or later):
Not seeing any new Vmax reductions due to V10. But it looks like I have lost about 1.1kWh to degradation in the past 3 months.
Haven’t tried to Supercharge since getting V10 so I don’t know if there is any more aggressive tapering than in V9.
Previous 100% from July 8 (V9, not sure if exact version but definitely 2019.16.xx or later):
Not seeing any new Vmax reductions due to V10. But it looks like I have lost about 1.1kWh to degradation in the past 3 months.
Haven’t tried to Supercharge since getting V10 so I don’t know if there is any more aggressive tapering than in V9.
UrsS
Member
"Musk says Tesla will be out of money in 10 months without ‘hardcore’ changes"
That 'quote' is actually a lie. Musk did not say that at all. What he said was that $2 billion in raised capital is really not that much money because that is what they are spending in 10 months (at that time, May 2019).
That 'quote' is actually a lie. Musk did not say that at all. What he said was that $2 billion in raised capital is really not that much money because that is what they are spending in 10 months (at that time, May 2019).
DJRas
Supporting Member
So, your cell voltage is 4.18. That shows you were not battery capped.
You also have pretty minimal degradation.
It looks like ~261 rated miles
What you state is incorrect. The articles do not state a probe has been started. The articles state a filed petition for an investigation is being reviewed. The government agency may decide to undertake an investigation in response to the filed petition, or they may decide not to do an investigation.
The articles also do not state that Tesla should have issued a recall on 2,000 cars. Rather, the articles indicate that the battery issue may involve 2,000 vehicles. However, it should be noted that the filed petition makes no reference to the number of vehicles that may be affected by this matter, so it is unclear where the articles got the 2,000 number from.
Guy V
Member
Yeah, they really owe an explanation of just what "it" is, and by what logic the condition that makes "a small percentage" of batteries unable to safely perform as all the others is something other than a defect.
Can you share the logs from a Supercharging session from a low SOC to 90%? That would help confirm your speculation above.
islandbayy
Active Member
Based on your TM-SPY screenshots, your battery is in excellent health! In fact, my 90D battery has a lower capacity than yours! My 90D has a capacity of less than 75kWh and is said to be wearing normally...
I have a 2012 S that seems to be showing signs of having a lowered charge rate. I’m assuming there’s an app for what you’re requesting? What’s a good app to use?
Yesterday I had a 220 mile trip to make in my 85D.
Left home with 110 miles of range. Got to the first Supercharger 55 miles away with 45 miles range on arrival.
Charged to 145 miles of range to make the 120 mile round trip to my destination and back to the same Supercharger.
Except the nav system showed -2% SOC to return to the same Supercharger as I departed.
On my return of my destination I had to stop at another supercharger on the way for 15 minutes to pick up enough charge to make my original and first supercharger stop.
I ended up doing three Supercharging sessions for 220 miles in a car that used to have range of 255 miles at 100% SOC!
Three months ago I would easily have made this journey with a single or perhaps two charging stops.
While the car is still lovely to drive long distance, the extra charging sessions, time wasted charging are really starting to make me question whether to keep the car or not.
So much so that a couple of weeks ago I test drove two different ICE vehicles as possible replacements.
With no access to home charging and a pretty unreliable public charging network, not owning a Tesla means not owning an EV for me at the moment.
All I really want is my car back the way it was prior to 2019.16.x and restored trust that Tesla will look after customers by ensuring that the driving and ownership experience remains as good as the day I purchased my car.
Left home with 110 miles of range. Got to the first Supercharger 55 miles away with 45 miles range on arrival.
Charged to 145 miles of range to make the 120 mile round trip to my destination and back to the same Supercharger.
Except the nav system showed -2% SOC to return to the same Supercharger as I departed.
On my return of my destination I had to stop at another supercharger on the way for 15 minutes to pick up enough charge to make my original and first supercharger stop.
I ended up doing three Supercharging sessions for 220 miles in a car that used to have range of 255 miles at 100% SOC!
Three months ago I would easily have made this journey with a single or perhaps two charging stops.
While the car is still lovely to drive long distance, the extra charging sessions, time wasted charging are really starting to make me question whether to keep the car or not.
So much so that a couple of weeks ago I test drove two different ICE vehicles as possible replacements.
With no access to home charging and a pretty unreliable public charging network, not owning a Tesla means not owning an EV for me at the moment.
All I really want is my car back the way it was prior to 2019.16.x and restored trust that Tesla will look after customers by ensuring that the driving and ownership experience remains as good as the day I purchased my car.
Ferrycraigs
Member
That’s an interesting, and very credible, take. Thinks. What would happen if instead of having a S70 that had turned into a S60, an owner had a standard Range (or even a long range) car that now had 30 miles less range, as we all know, “Loss of Range is not covered under the Warranty”. Up that creek again I suspect.
Ferrycraigs
Member
Over the past 3 months my Vampire drain has ranged between 1% and 5% per night. It used to be less than 1% per night. I think this is a third 'new condition'. My Vampire Drain (best not call it VD) seems more on hotter nights.
BigNick
Disaffected Member
Display showed 246 at 100% SOC.
P85D was rated at 253 new; so this is just under 3% after roughly 33500 miles.
BigNick
Disaffected Member
I just wanted to see if Tesla was hiding something battery-limiting in V10. Not trying to taunt anyone who is having real battery issues.
I assume your 90 pack is a V1 or V2 pack?
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