CuriousG
Active Member
I haven't taken that route in a while but once you get passed Livermore, there's a significant portion where you're coasting downhill.
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Wiki Sudden Loss Of Range With 2019.16.x Software
- Thread starter Dutchmeeuw
- Start date
jkennebeck
Member
Someone posted above Bjorn showing his P3D was capped under 4.2v @ 100% so it sounds like Model 3 is getting the same thing.
It's settled and you just confirmed it yourself. Tesla manages volts to more than the hundredths place, you may only see 4.19v but you're fully charging to 4.199 or whatever your BMS determines is safe in an uncapped state. That's the best you'll ever get - 4.2000000 volts is unrealistic to expect and 4.21v is not safe so you'll always be a few thousandths off, as were the EPA tested configurations making it perfectly legal, this is the BMS' job and yours is working as intended. Bjorns and everyone else that is affected here is not - or the intent has been manipulated to illegally take what we own without compensation or permission. The fact that you diverge from .1 - .2v from confirmed values is confirmation of capping 100% below. I was going to ask if everyone shares the same sub-4.v on the Model 3 because Tesla voluntarily requested a range reduction from the EPA. That voluntary range reduction also means Tesla can voluntarily cap volts to a slight amount to limit range to the derating that they requested. This is what Porsche and Audi have done selling cars limiting range below the pack's fully charged value, and what Tesla has done on the 3SR, 60D, S40, and any other factory-capped batteries they sold.
Thanks, now we know that the issue is voltage capping with confirmation that it is not universal. It's sounding like the Model 3 suffers the same randomly applied and unpredictable underlying defect our older cars have been drastically downgraded tin spite of what some experts have gone on the record as saying need to be replaced.
There are more questions regarding Model 3 however. We don't yet know what value below 4.2v becomes illegal for Tesla to cap. Unlike our 85 capacity cars that can't be capped below 4.2v, Model 3 can - a small amount.
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DJRas
Member
Your typical range does seem low.
For the 90s you should be seeing something over 400 kms.
When did you purchase the car?
Maybe it was already capped.
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My S 70D a month or 2 month before the update battery fully charge is 238 miles, but after the update lately fully charge showing 226 miles. My S is 37k miles now.
I dont really know whats going on with the software.
Seem like Tesla want to Cap the battery not to get fully charge 100%. They must run some testing before release new update to increasing miles like they said
Sure, but how does that make the entire trip more efficient. In fact, it's just the opposite. You say "coast" but cossting down the backside of the Altamont Pass has a significant amount of regen braking. The entire trip from point A to point B would have been more efficient if I didn't have to go up a hill and then regen on the way down since regen only recaptures some of the energy and not all of it.
I think you're right with respect to this being the new normal, at least for folks with the 85kW pack during and after Supercharging. I have never Supercharged belong 85% and my last two Supercharging sessions (Manhattan Beach and DT San Diego) experienced a much quicker taper than before 2019.16.x.x. I drove over 60 miles in 70F temps for both trips and arrived with ~50 range miles remaining. Both times happened to be Urban 72kW SuC and it took about 50 minutes to add 150 range miles in Manhattan Beach, but took 42 minutes to add 100 miles in San Diego. Both times the radiator fans started at around 30 minutes into charging and remained on for a good 10-15 minutes of moderate driving.
It seems to me that Tesla has changed the BMS and cooling system to not only lower the rate of Supercharging, lower the max voltage capacity, but has remapped the cooling system to deal with temperature. I miss the good ole days when I was able to go from 8% SOC to 80% in 40 minutes.
Did any of those affected by the fires in California get any range back with our boy Elon OTA gracious range increase update? Or at-least mess up and include 85?
source: Tesla to unlock extended range for vehicles affected in CA wildfires
source: Tesla to unlock extended range for vehicles affected in CA wildfires
If you watch the video expect you will find that number is the vMin. And of course the lowest brick isn't going to be at 4.2v, that would be the vMax brick.
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I am behind the curve on this thread, but now that I have a car that might be affected, I am willing to contribute if I am able. How hard is it to measure the v on the 3? My understanding is it is a different procedure from the S, does anyone have a step by step and what equipment I might need?
Interestingly my browser seams to be working better. Not really good but it actually loads and reloads within 30 seconds. Update notes load too but they are just the generic v10 notes. 2014 S85 RWD no autopilot 86k miles.
CuriousG
Active Member
But you've already gone up the steep hill and charged I presume from Livermore so that's a whole new trip so you get the benefit of coasting down the hill on that trip. Anyway, when I was being routine trips out to the Bay Area, I always noticed the efficiency was much better going that direction. Don't know if it's a combination of tail wind and and hill but it was certainly more efficient going that route than I-80 when heading to Bay Area.
CuriousG
Active Member
Beats not having a screen at all since my MCU1 died today. Funny thing is it never downloaded the update that I noticed was available today.
Bjorn recently did a video on his solution. (You need an adapter cable, BLE dongle, Android device, and ScanMyTesla.)
No, I have the huge frunk. It's rated range - I just saw that setting when I was looking at the new V10 settings screen. My battery model printed on the sticker is for a 70. I've run it down to 8% and to 100% over the years - same numbers. The lowest 100% has ever been in 240. I got distracted at the Casey Jones Museum at the Jackson, TN and came out to 245 miles and a trickle charge. At no time have I ever had a sudden drop in range or anything else that indicates the numbers aren't real. I'm hoping I don't get a shock some day.
I'm going over all that because I do understand that it doesn't look right. Sort of hoping somebody could chime in and explain it.
Anyway... at least a couple of us 70 people are seeing that pattern. It exists.
DJRas
Member
I have a cable for a 2018 M3 and can read your car.
Your location says Palmdale. Where else do you go?
CuriousG
Active Member
I don't know how you have 240 miles from a 70 as that was rated 230. At the time, Tesla was using their dual motor marketing to say it is more efficient with dual motors even though they have reversed course now. You can also verify by the badging on the trunk and also displays in your car. There was a brief time where they had 75 batteries and software locked it 70. The 70 batteries have always been affected in this thread, articles written just continue to say it's only 85 batteries.
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