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Just a warning to new Tesla owners!

Discussion in 'Model S: Battery & Charging' started by C.r. Moorehead, Dec 3, 2014.

  1. AmpedRealtor

    AmpedRealtor Well-Known Member

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    EVplanner was instrumental in helping me estimate the rated miles needed to drive from my home in Buckeye, AZ to Clayton, CA for a recent road trip. EVplanner.com was dead on. I added a 20% buffer to those numbers and had no worries driving 75+ MPH both ways in typical fall California weather.
     
  2. wraithnot

    wraithnot Model 3 VIN #2942 Model S VIN #5785

    Joined:
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    SF Bay Area
    I completely agree. On our recent road trip to New Mexico, I looked up the elevation at each charging destination and then had an ipad running an elevation app so I could keep track of the elevation difference as well as the difference between remaining range and distance to the destination. It seems like programming the car to do this would be pretty straightforward.

    Ideally the nav system would take remaining range, elevation, speed limit, temperature, etc. into account and then display an estimate of the range that will be left at the destination if you maintain the current speed ratio and the current climate control power usage. That's always the number I'm most interested in.
     
  3. omarsultan

    omarsultan Active Member

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    Just a reminder that Ben, the 16-year-old behind EV Trip Planner is saving for college, so if you use the site, it would be nice throw him a few bucks for his college fund: EV Trip Planner
     
  4. MartinAustin

    MartinAustin I Do Not Read Electrek

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    Pretty unbelievable if you were on level ground, but if you were on a downhill stretch I guess I can believe you :)

    Lowest I ever got my P85 to during a zero-range emergency was 207Wh/mile. That was driving on level ground at 30mph with super-gentle acceleration, air conditioning off and the windows UP during 90 degree weather. Not pleasant!

    If you're in a rural area you are probably at more risk, but don't forget that you can actually charge your car anywhere there is electricity. I had been driving for a while with "zero" miles of charge left, and still had about 5.5 miles left to drive on my journey, I decided to pull over at a strip mall that had external 110V power sockets all over the place, probably spec'd to power maintenance equipment. I plugged in and waited until the range meter rose to "1" (took about 25min). Then I drove on and got home OK.
     
  5. EarlyAdopter

    EarlyAdopter Active Member

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    Redmond, WA
    Things that kill range:

    1. Speed
    2. Elevation
    3. Cold

    You had all three. Glad you made it!
     
  6. TexasEV

    TexasEV Well-Known Member

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    The elevation penalty has been calculated as 7 miles of rated range per 1,000 feet.
     
  7. SigS905

    SigS905 Sig S 905 + X 5

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    FV, CA
    Over a year ago, we were coming home from Portland and had a rear blow out. Had to be towed back to the Portland service center. Lost 60 miles of charge. Stopped at Three Feathers to charge using the Roadster charger. Left to early. With the cold and mountainous route to CA from Three Feathers, we were 28 miles from the hotel with 14 miles in the battery at 2:00 am in the pitch dark. Slowed to 25 mph, in the emergency lane with flashers, made it to the hotel with 1 mile to spare. The freeway was down to one lane the whole way and luckily it was a week day. 18 wheelers passing by at 70+ was a little shaky.
     
  8. SW2Fiddler

    SW2Fiddler Your concern. It's noted...

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    Why Tesla hasn't straight HIRED Ben, the young programmer of EVtripper.com yet, I have no idea.
     
  9. Cottonwood

    Cottonwood Roadster#433, Model S#S37

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    Hear, hear!

    Let Ben sign an NDA, give him the API for the MS and let him create a useful app for our cars! An integrated App that predicted rated miles to destination with current conditions and usage would be wonderful. If he did that, I would welcome the PayPal button to contribute to his college tuition.
     
  10. William13

    William13 Active Member

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    The cold saps out a lot of energy at high speed from air cooling the battery. Range mode from the begining of a trip avoids wasting energy warming the battery. The cost is lack of gut retching acceleration. The interior temp controls can be overridden. Range mode is especially helpful when doing multiple short trips around town over long hours where the battery cools off. All winter I estimate at least 50% extra needed miles to avoid anxiety and battery damage which is a lot worse at 0% charge than 100% charge.
     
  11. Drucifer

    Drucifer Active Member

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    Charlotte, NC
    Maybe offset by as more and more people get into Model s and Model x, density of superchargers will increase. I would bet that Model 3 will lead to well under 100 mile spans between superchargers in most places.
     
  12. ModelS1079

    ModelS1079 Member

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    #32 ModelS1079, Dec 3, 2014
    Last edited by a moderator: Dec 3, 2014
    Absolutely. Makes a big difference over the distance. I actually leave it on pretty much all the time.
    No more knucklebiters for me, but I think we all have that One story to tell... Third winter coming up, and I am still amazed at the increase in power usage as it gets cold out there.
    That said, a little planning and zoooom no problem.
     
  13. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    In addition to what others have mentioned, when going on a trip, you're often carrying more than you are around town so adding a few psi to the tires is helpful. Also cold weather shrinks the air so you need to compensate for that too. Make a big difference in range.
     
  14. Saghost

    Saghost Well-Known Member

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    This sounds like a great plan to me - then EVPlanner's IP can be the heart of the integrated Navigation update I proposed earlier - and Ben has a way to pay for college and a good plan for after college, too. :)
    Walter
     
  15. C.r. Moorehead

    Joined:
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    Location:
    Las Vegas
    Sorry about the lack of paragraphing - My PHD of English grandmother would have rolled over in her grave! I was emotionally drained after the trip. Thanks for all the comments. The funny thing is I have driven that stretch of road literally hundreds of times. Just not in an EV car.

    Also, everyone giving me a hard time about drafting - I wasn't Nascar close. I was still 20-30 feet behind the specifically chosen 3 trailer semi truck. The real only reason I made it. is that 85% of the final 14 miles is a slight downgrade. It's really funny because I am usually the one that adds WAY more than necessary - I was just trying to hurry to see my son prior to bedtime.

    Life is full of lessons. This one didn't cost much more than a little humility and some time and a few cold chills.

    Happy safe driving to all of you!

    CR
     
  16. C.r. Moorehead

    Joined:
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    Location:
    Las Vegas
    Also for the "nay sayers" here is the pic while I was charging of the last little run on the way to the supercharger. Here comes all the critics of my driving prior to the 100wMI - to which I say it's mountainous terrain!
    beaversmall.jpg
     
  17. snowpuff

    snowpuff Member

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    Apr 25, 2014
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    Location:
    Seattle
    Related: I just went to the link recommended in this post for the EVTripPlanner and while the homepage loads, the actual planner gives a 404 error. As luck would have it, I am driving from Seattle to Portland this afternoon and this is my first time needing to range plan and the recommended site does not work — lucky me :)

    OP: Glad you made it!
     
  18. liuping

    liuping Active Member

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    Which browser are you using?
     
  19. CliffG

    CliffG Member

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    New Jersey
    crap. looks like his server either crashed or was restarted and the https site is not coming up. the non-tls site comes up with the default, Centos/Apache page.
     
  20. Saghost

    Saghost Well-Known Member

    Joined:
    Oct 9, 2013
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    Delaware
    If you look over here:

    Evtripplanner is down for a day or so...sorry

    He reported that his "unlimited" website service shut him down for having too many visitors, and the site got somewhat mangled transferring it, but he hopes to have it back in a day or two.
    Walter
     

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