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Model 3 vampire drain after FW upgrade

Discussion in 'Model 3' started by myM3, Apr 14, 2018.

  1. myM3

    myM3 Member

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    After upgrading FW to 2017.12 5eadc71 the battery is draining while it is parked and not used.

    Here is the drain in last 6 hrs
     
  2. Tony_YYZ

    Tony_YYZ Tezler Guru

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    2018.14.1 is allegedly supposed to fix that.
     
  3. ebmcs03

    ebmcs03 Active Member

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    What’s normal drain?

    I parked my car for two days and I’ve lost 10 miles.

    My fiat 500e can be parked a week and it loses maybe 1 mile.
     
    • Like x 1
  4. nogajim

    nogajim Member

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    Have current software. Dropped from 221 to 220 overnight (12 hrs). Not complaining. Our family room is next to our garage, so it handles the proximity to phones without a problem.
     
  5. M109Rider

    M109Rider Active Member

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    Hopefully they can find a fix with less drain soon.
    I wouldn’t mind some drain, but this is a little high.

    I’m not sure you can really compare a fiat 500e to a Tesla though.
    84 miles on a charge, with not outside communication, and very little tech on board.
    Very cool car, my wife wants one, (she has a Fiat 500 gas version right now), but the 500e is not even in the same league as the Tesla.
     
  6. ebmcs03

    ebmcs03 Active Member

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    I agree. But even with the Tesla tech it should be able to shut down and minimize the power drain. At this rate I wouldn’t want to park it at the airport parking. I disabled all Tesla app and pinging from the phone(s) so it won’t wake th car up. Yet still getting 5 mile drain a day.
     
  7. chronopc

    chronopc Active Member

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    According to the manual, 1% lost a day is normal.

    Battery Care
    Never allow the Battery to fully discharge. Even when Model 3 is not being driven, its Battery discharges very slowly to power the onboard electronics. On average, the Battery discharges at a rate of 1% per day. Situations can arise in which you must leave Model 3 unplugged for an extended period of time (for example, at an airport when traveling). In these situations, keep the discharge rates in mind to ensure that you leave the Battery with a sufficient charge level.
     
  8. ebmcs03

    ebmcs03 Active Member

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    So I’m averaging almost 2% a day. Humm not terrible but I like less.

    I’ll bring it up at service and get some recommendation on what to do to minimize drain
     
  9. omgwtfbyobbq

    omgwtfbyobbq Active Member

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    That's probably the HVAC blower keeping cabin temps down. The only thing I can think of for that is to put on a car cover, probably with a cable/lock if you're leaving it alone for a while.
     
  10. chronopc

    chronopc Active Member

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    Are you opening up your app to check on the status of the car during days you don't drive?
     
  11. ebmcs03

    ebmcs03 Active Member

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    Nope. It’s inside my garage. It’s pretty cool.
     
    • Informative x 1
  12. ebmcs03

    ebmcs03 Active Member

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    No. I waited two days to check.
     
  13. chronopc

    chronopc Active Member

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    Weird. If that's the case, your car should be in deep sleep mode and shouldn't be draining.
     
  14. ebmcs03

    ebmcs03 Active Member

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    Ya That’s what I thought. So not sure what’s wrong. I’ve seen it deep sleep over night before. So I’m wondering what changed. Other than the newest software.
     
  15. chronopc

    chronopc Active Member

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    Do you keep your car plugged in? It may have something to do with the battery management system which I imagine would vary depending on temperature.
     
  16. ebmcs03

    ebmcs03 Active Member

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    No. I purposely didn’t plug it in just to see the drain since I will be away.
     
  17. ebmcs03

    ebmcs03 Active Member

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    I unlocked and re locked the car and it seems to have put it back to sleep.
     
  18. slipnslider

    slipnslider Member

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    My question is - why do the electronics have to be powered when the car is off? I know some power is used to keep the battery temp out of dangerous levels, but what else? If all this juice is being used uploading autopilot data to the mothership or something, they should let us turn that off.
    Vampire drain is rarely mentioned on the list of things that make EVs inferior to ICEs but it's a valid concern. You can park an ICE for months, and the worst that will happen is it'll need a jump start. With a tesla, If you're on vacation and some disaster forces you to extend your trip by a week or two, you have to start thinking about returning to a dead car that can't be easily jump started or towed.
     
  19. chronopc

    chronopc Active Member

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    My guess is that it has something to do with the car always being in constant communication with the Tesla servers. An option Tesla could add is to fully shut down the car when someone goes on an extended vacation.
     
  20. omgwtfbyobbq

    omgwtfbyobbq Active Member

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    I'd contact Tesla about that. A consistent 5+ miles/day seems too high.
     

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