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Model Y full charge range
- Thread starter Fishy
- Start date
I wouldn’t worry. I’m at 289, so just 2 miles more than you. However, I noticed that on my same work commute, my Wh/mi has been about 10% less than when my battery was at 316. That leads me to believe that no matter what your battery is showing, your actual range doesn’t really change.
whisperingshad
Active Member
whisperingshad
Active Member
2 weeks ago. Normally i dont charge to over 80ish%. My daily driving is about 100 miles total. i have about that much do do today but dropping off for service tommorow morning and dont want to worry about it being charged enough.
What I'm trying to understand is how many are jumping to conclusions and blaming battery degradation without doing any thorough real world tests before making such a claim.
I highly doubt that anyone goes through what Bjorn does to properly evaluate battery degredation, after all, it's a very time consuming process. In other words, this thread is meaningless and misleading until someone puts in the effort before coming to any conclusions.
I highly doubt that anyone goes through what Bjorn does to properly evaluate battery degredation, after all, it's a very time consuming process. In other words, this thread is meaningless and misleading until someone puts in the effort before coming to any conclusions.
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whisperingshad
Active Member
I think main thing is normal battery concepts. Don't charge to full all the time. Let it go down to low sometimes too.
Scanmytesla gives the kWh of the battery as reported by the BMS. Mine was 77.8 kWh when new and is now 69 kWh. Seems like ~11% degradation to me. Do you draw a different conclusion? It'd be great to find out my battery isn't degraded that much.
Hmmm - I have almost 8k miles on my Model Y. Using the data from Tesla Fi, I am now down to 287 miles on a full charge - and declining rapidly in the hot weather. (It's already 90-100 degrees in deep south Texas.)
Would a January build have 316 or 326 miles in theory? Changed my display to miles for the first time since my second day of ownership, at 50% it gave me 158 miles. So theoretically 316 at 100%. 2700 miles. 55 degrees outside.
As pointed out by several people, I don't think that this number impacts the actual range anyway, it is more based on what the BMS "sees". If you keep your car between 50-80% without letting it drop to a low battery or charging up >90% ever, it will probably tend to be inaccurate. Battery degradation has been proven pretty low with 2012 Model S's, with the battery technology being lesser back then. I doubt a Model Y would actually lose 10% in the first couple thousand miles, unless you're only supercharging it.
As pointed out by several people, I don't think that this number impacts the actual range anyway, it is more based on what the BMS "sees". If you keep your car between 50-80% without letting it drop to a low battery or charging up >90% ever, it will probably tend to be inaccurate. Battery degradation has been proven pretty low with 2012 Model S's, with the battery technology being lesser back then. I doubt a Model Y would actually lose 10% in the first couple thousand miles, unless you're only supercharging it.
It's not based on the build date, but on the software version.The change from 316 to 326 happened middle of 2020 (can't recall the exact month). It was basically due to the software version improving the efficiency, battery capacity did not change.
I'm down to 298 miles after almost one year and 7K miles, but it is very much possible that the BMS is too pessimistic.
I have 4200 miles on my 6-month-old MYLR and my 100% distance is 305 miles just this morning. When the car was new, I distinctly remember it reading 326 miles when the slider is moved to 100%.
Would be really curious to see if the battery calibration will really reverse course and start to read higher miles with summer approaching, or if I'm just watching my Long Range become a Standard Range literally in front of my eyes with hardly any driving.
Would be really curious to see if the battery calibration will really reverse course and start to read higher miles with summer approaching, or if I'm just watching my Long Range become a Standard Range literally in front of my eyes with hardly any driving.
I've tried various BMS calibration techniques from the M3 thread. Nothing seems to make much difference, and any difference I see lasts only a few cycles. I suspect my battery has indeed degraded 11%. As long as that rate slows way down (or drops 19% more percent for a warranty claim), I'm not too worried about it. Dropping another 11% in the next couple of years, yet not getting to 30% would be disappointing. My BMS-reported capacity slide hasn't slowed yet. Time will tell. (BTW, I don't supercharge normally, have charged to 70% - 90% daily, and have been below 10% only twice to calibrate the BMS, and to 100% just before a few trips.)
I think the MS battery degradation was skewed by holding some degradation reserve capacity in software. From many, many posts on the M3 and MY forums, it appears 10% -15% degradation in the first two years is fairly common. My car is now down 12%, double the average 6% drop average in the 18 other similar vehicles in this Teslafi set. Again, I'm not too worried about it, but it is a little disconcerting.
BTW, the sharp 7 mile bump up at ~4200 miles was the software range bump when they moved the fleet from 316 miles to 326.
I think the MS battery degradation was skewed by holding some degradation reserve capacity in software. From many, many posts on the M3 and MY forums, it appears 10% -15% degradation in the first two years is fairly common. My car is now down 12%, double the average 6% drop average in the 18 other similar vehicles in this Teslafi set. Again, I'm not too worried about it, but it is a little disconcerting.
BTW, the sharp 7 mile bump up at ~4200 miles was the software range bump when they moved the fleet from 316 miles to 326.
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This is not enough data to make such a conclusion. Until you go on a long +300 mile trip, starting from a full charge, and try to extract the most range possible using appropriate techniques, you’re making a big assumption about the health of your battery.
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