ucmndd
Well-Known Member
Loving all the “disagree” ratings I’m getting in this thread. OP, please do check back in with us in January so we can see how wrong I was.
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Here's my 2 cents:
If she's getting back with 15% in summer, when charging to 90%, she should probably be charging to 85%. In winter, charging to 95% is fine. The effects of high temperature and high state of charge multiply with each other and with time, so charging more in the winter and charging as late as possible will reduce degradation.
The other problem is her range anxiety. With experience, an electric car can go much further than its rated range. This comes with going slower. She should experiment with learning just how slowly she has to drive to get home with 20%. Once she's learned how to do this, she'll also know how to get home with 10% or even 5% when it's cold out. With it being a daily drive, she'll get a lot of practice. This means that on the worst days of the year, she may have to drive 70 MPH or even 60 MPH. If you live where there's snow, there will be days where she will be dreaming 60 MPH, but because of road conditions, not range.
This is all assuming a charger isn't available. It would certainly take the anxiety away if she can just stop at a supercharger for 10 minutes on those few coldest days in winter. She needs to stop when the car has been on the road for a while, and not when it's cold, because a cold car charges slowly.
I've seen this before and IMO it's the same as putting a piece of black electrical tape over a check engine light.I also suffer from range anxiety and the one thing that truly helped was simply changing the display from miles to %. It's ALOT less anxiety seeing 20% battery remaining as opposed to 60 miles. I mean think about if your phone displayed mins remaining instead of just a percentage? 8 mins remaining...5 mins remaining...
Now, it doesn't even phase me as I'm driving.
Ha ha ha! They're not. The highest speed limit in the state of Illinois, where this discussion is about, is 70 mph, so this is proposing at least 10 mph over the speed limit. Americans do have quite an addiction to speeding.80mph? I hadn’t realised that limits were so high for you.
Not to mention the price of the speeding tickets and the classes she would need to attend. I'm just curious but what is the speed limit in Illinois? I live in a rural area north of San Francisco and we don't have any freeways that are close but we have lots of very curvy roads that have hairpin turns that the suggested speed is 15 mph and the Tesla on autopilot takes curves way too slow.I know this makes sense... but when you are driving 120 miles one way she tends to push it to get their faster. I showed her the difference in time and explained the range shes losing for those 6 mins isn't worth it.
Thank you very much!! This real world is example is most helpful. A Tesla service tech contacted me and he basically said the same thing you did. I have newer batteries in my car, and they are not as concerned about the 100% charging as previously stated. He said in fact the opposite is true.... cycling the battery fully between 100-1% occasionally is a good practice.@GreggF1 , welcome!
My wife is the primary driver of our 2013 Tesla Model S 85.
She decided early on that she would charge to 100% whenever she was planning a trip, which eventually turned out to be multiple times per week due to a change in her business.
Our Tesla S has 97% original capacity, and my wife routinely charged to 100%, hundreds of times in a two year span, she sometimes timed her charging to get 100% by the time she needed to leave, and other times the car would sit at 100% for a few hours overnight.
Summarizing all the good advice up thread:
1. Charge to 100% daily in the winter when she needs the range, that's what the slider setting is for!
2. Use the schedule charging feature to set the time of day the car should finish charging.
3. Set destination in the map screen so the car can advise her to slow down, Tesla's will do that, warn the driver to reduce consumption due to the estimate of range remaining to get home.
4. Buy efficient 19" winter tires/rim combo.
5. Change default range gauge to read "%" (not miles), as with her driving speed, she's never going to get the rated range. Plus, this way she can confirm that she arrived at work with more than 50% range remaining, which will give her confidence she can make the return trip.
6. Find a way to get workplace charging, even a three pin plug (120V 12A) over 8 hours will add >15% range.
7. Pre-condition the car in the winter prior to leaving home, this uses grid power when plugged in, my wife would set the car to "lava" hot temperature about an hour before she left on her long winter drives.
ENJOY THE CAR! DON'T STRESS ABOUT RANGE DEGRADATION. Like I said, my wife just drives the car, and I don't tell her anything about battery degradation or technical stuff, just enjoy the car and drive.
Thank you very much!! This real world is example is most helpful. A Tesla service tech contacted me and he basically said the same thing you did. I have newer batteries in my car, and they are not as concerned about the 100% charging as previously stated. He said in fact the opposite is true.... cycling the battery fully between 100-1% occasionally is a good practice.
This isn't a car issue. Move closer to the job or find a new job closer to home. I know, a hell of a lot easier said than done. But if part of the reason we're all buying Teslas is the environmental benefits, remember that the carbon footprint of a Tesla still isn't 0 (even if you have rooftop solar + powerwall!)
This isn't a car issue. Move closer to the job or find a new job closer to home. I know, a hell of a lot easier said than done. But if part of the reason we're all buying Teslas is the environmental benefits, remember that the carbon footprint of a Tesla still isn't 0 (even if you have rooftop solar + powerwall!)
No battery since the 85kwh in your car has come close to that low level of degradation over time, including the 100kwh pack, and yours is apparently a unicorn even by 85 standards. The fleet average shows far more degradation now, and it's misleading to make the OP think they're going to replicate these results given the daily driving conditions they describe.Our Tesla S has 97% original capacity
But do note that if you leave the slider set to 100% for more than three consecutive charges, the car will warn you that you're negatively impacting battery health.1. Charge to 100% daily in the winter when she needs the range, that's what the slider setting is for!
This is unlikely in winter in Chicago.6. Find a way to get workplace charging, even a three pin plug (120V 12A) over 8 hours will add >15% range.