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Continue to enjoy the exhilarating experience of performance You get what you pay for SpeedI get terrible efficiency. Just because I launch from every light and jump to speed any chance I get. Most of my trips are short and I like a warm cabin before I leave.
I’ve already replaced the 21’ rear tires on my 2022 MYP worth every pennyContinue to enjoy the exhilarating experience of performance You get what you pay for Speed
He had 20 miles left at 0%? O didn't see that part in the OP.So, even with your battery indicator showing 0%, you still had another 20 miles to go for full depletion. You could theoretically add that to your available "mileage".
There is also literature backing this up. I made a post about it a few years ago with a link to the article.Tesla battery tests include a test that draws the battery down to 0%, lingering for "x" amount of time, and then charging to 100%, again, lingering long enough to balance the cells. This is how battery capacity is determined.
This isn't advisable on a frequent basis, but an occasional draw down to 0% does no harm to the HV battery.
How long do you let it sit at 100% for the calibrationIt gives the bms more information and can improve the floating calculations of battery health and total capacity. As far as balancing it's always happening, although going to 100% forces a max voltage balance.
Overall I personally feel that a 100% calibration is better than a 0% one and will never go below 20% unless I'm on a road trip and need too.
No time. As soon as it stops charging it's calibrated and should be driven.How long do you let it sit at 100% for the calibration
Some have seen that it may take a long time to hit the 100% number. It's absolutely safe to leave it for hours and days at 100%.How long do you let it sit at 100% for the calibration
Wondering after reaching 0%, how long (time) and how far (distance) did you drive Tesla around the supercharger before getting hooked to the supercharger?My 2023 model Y LR 19" stock wheels from Fremont has 17k miles on it, the weather was decent (62F and sunny) so I ran my battery down to 0% (0 miles). I mainly did this to lessen my fears of running out of battery on a road trip.
I started with a full battery (100% charged from home), usually when I charge to 100% for a long trip the last 8% usually takes about 35 minutes, this time it took 111 minutes. I am guessing the battery needed a lot of balancing since it has been months since I've charged to 100%.
Did this hurt my battery? I watched this video from Jeff Dahn and he suggests (20 minutes into the video) a depth of discharge of only 25% daily for NMC batteries (which is about what I am doing.) Jeff indicated that every 500 hours they did a "check up cycle" from 100% to 0% during the 2.5 years of testing. I am not sure what that check up cycle equates to in miles, but I am guessing do a "check up cycle" every 17k miles is OK for the health of the battery.
- 317 rated miles at 100% (the number at the top of the screen near the battery icon, I think Tesla calls it "Total estimated driving distance (or energy) available")
- 315 actual miles driven to 0% from Tesla "since last charge" trip meter
- 318 miles driven shown by my USAA insurance app
- 6 hours 56 minutes of driving over a couple days, highway and county roads mostly in the Denver area at around 60F (USAA app)
- 71kWh consumption of the battery (from Tesla trip meter)
- 224wH/mile averaged. 71kWh divided by 224wH/mile = 317 miles which is magically what Tesla estimated before I started driving.
- When I got to 0% I didn't notice any power loss, however I could see 4 dots on the right side of the Power Meter. 5% is when the dots started to appear.
- I received plenty of warnings that I was getting low, the last few miles I circled my local supercharger station.
- When I tried to supercharge at 0 miles I got an error message saying something like "charging stopped". I freaked out a bit and I started to think this test has ruined my battery!
- I tried another stall and it started charging at 165kW right away and within 45 seconds it was already at 250kW. From 4% all the way to 11% it stayed at 250kW which seemed really good considering I did not precondition the battery at all and it was 62F.
- The charging session took 1:22 from 0% to 100%. (Tesla estimated 55 minutes)
- +80kWh total for the supercharger session receipt which I think included some HVAC and watching Youtube while waiting.
- +76kWh actually went just to the battery (number shown below "Charging Complete" message at top of screen).
- After the supercharger session the new rated miles at the top of the screen dropped slightly to 316.
- As for degradation I am not sure how to calculated it. If it was rated for 330 new and now displaying 316, I guess that is -4.2%. But I used -71kWh draining it to 0%, but it received +76kWh to fill it back up so I not sure how to calculate that.
- After doing this test I do feel more confident about not running out of battery.
View attachment 1025010
"Tesla Model Y in San Ramon" by DestinationFearFan is licensed under CC BY-SA 4.0.
Admin note: Image added for Blog Feed thumbnail
nah. It's clear that you shouldn't charge to 100% and leave it there, but there's no real harm in charging to 100% then driving soon after. Likewise, there's no significant harm done doing a deep discharge, as long as you don't leave the battery sitting at 0. The biggest risk is getting stranded!Sounds like these "tests" have more risk than reward.
Lots of speculation.
Since there is no reward in doing battery tests, you are correct.Sounds like these "tests" have more risk than reward.
Lots of speculation.
Well, for the OP there was clearly a reward in terms of information gained. That will be different for each owner, though.Since there is no reward in doing battery tests, you are correct.
Just drive the car, Tesla will take care of the rest.
You have a great efficient 2023 Tesla Y LR. What is you life time Wh/mile as reported by the car?My 2023 model Y LR 19" stock wheels from Fremont has 17k miles on it, the weather was decent (62F and sunny) so I ran my battery down to 0% (0 miles). I mainly did this to lessen my fears of running out of battery on a road trip.
I started with a full battery (100% charged from home), usually when I charge to 100% for a long trip the last 8% usually takes about 35 minutes, this time it took 111 minutes. I am guessing the battery needed a lot of balancing since it has been months since I've charged to 100%.
Did this hurt my battery? I watched this video from Jeff Dahn and he suggests (20 minutes into the video) a depth of discharge of only 25% daily for NMC batteries (which is about what I am doing.) Jeff indicated that every 500 hours they did a "check up cycle" from 100% to 0% during the 2.5 years of testing. I am not sure what that check up cycle equates to in miles, but I am guessing do a "check up cycle" every 17k miles is OK for the health of the battery.
- 317 rated miles at 100% (the number at the top of the screen near the battery icon, I think Tesla calls it "Total estimated driving distance (or energy) available")
- 315 actual miles driven to 0% from Tesla "since last charge" trip meter
- 318 miles driven shown by my USAA insurance app
- 6 hours 56 minutes of driving over a couple days, highway and county roads mostly in the Denver area at around 60F (USAA app)
- 71kWh consumption of the battery (from Tesla trip meter)
- 224wH/mile averaged. 71kWh divided by 224wH/mile = 317 miles which is magically what Tesla estimated before I started driving.
- When I got to 0% I didn't notice any power loss, however I could see 4 dots on the right side of the Power Meter. 5% is when the dots started to appear.
- I received plenty of warnings that I was getting low, the last few miles I circled my local supercharger station.
- When I tried to supercharge at 0 miles I got an error message saying something like "charging stopped". I freaked out a bit and I started to think this test has ruined my battery!
- I tried another stall and it started charging at 165kW right away and within 45 seconds it was already at 250kW. From 4% all the way to 11% it stayed at 250kW which seemed really good considering I did not precondition the battery at all and it was 62F.
- The charging session took 1:22 from 0% to 100%. (Tesla estimated 55 minutes)
- +80kWh total for the supercharger session receipt which I think included some HVAC and watching Youtube while waiting.
- +76kWh actually went just to the battery (number shown below "Charging Complete" message at top of screen).
- After the supercharger session the new rated miles at the top of the screen dropped slightly to 316.
- As for degradation I am not sure how to calculated it. If it was rated for 330 new and now displaying 316, I guess that is -4.2%. But I used -71kWh draining it to 0%, but it received +76kWh to fill it back up so I not sure how to calculate that.
- After doing this test I do feel more confident about not running out of battery.
View attachment 1025010
"Tesla Model Y in San Ramon" by DestinationFearFan is licensed under CC BY-SA 4.0.
Admin note: Image added for Blog Feed thumbnail
It’s not the battery, it’s the drive train and the driver.You have a great efficient 2023 Tesla Y LR. What is you life time Wh/mile as reported by the car?
I have the exact same model/setup car (but Austin built) with similar mileage. I can never got even close to the mileage as yours at its most optimal condition. Mine averaged 261 wH/m on the odometer but there are also more than 10% vehicle standby consumption that I also attributed to the real driving consumption (all happened right after the drives).
Good for you. I guess my car battery just refuses to perform at its best.
2023 | Wh/mi | Miles | kWh-Vue | Cost | $ per kWh | Temp° Outside |
Jan | 268 | 1,500 | 470 | $59 | 0.125 | 29.0° |
Feb | 276 | 1,036 | 328 | $41 | 0.125 | 34.3° |
Mar | 246 | 1,475 | 444 | $56 | 0.125 | 36.5° |
Apr | 239 | 947 | 262 | $31 | 0.125 | 48.8° |
May | 271 | 2,749 | 375 | $47 | 0.125 | 59.5° |
Jun | 241 | 1,354 | 420 | $57 | 0.136 | 65.5° |
Jul | 260 | 1,761 | 443 | $60 | 0.136 | 74.6° |
Aug | 249 | 750 | 139.2 | $19 | 0.136 | 72.4° |
Sep | 231 | 1,179 | 172.8 | $24 | 0.136 | 67.0° |
Oct | 229 | 577 | 132.0 | $16 | 0.125 | 53.1° |
Nov | 254 | 754 | 150.5 | $19 | 0.125 | 45.0° |
Dec | 252 | 1,376 | 242.37 | $30 | 0.125 | 40.1° |