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My Model X overnight vampire drain is 8 miles/day? Options? Norm?

Discussion in 'Model X: Battery & Charging' started by scottf200, Apr 3, 2016.

  1. scottf200

    scottf200 Active Member

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    I was away 2 weeks ago and each night it did this for 22 minutes. SOC 67% -> 70% and Range 165.2 -> 173.4 (8.2 Miles - vampire).

    Does it matter if you turn Climate Control off (power button for it at bottom of screen)? I would have guessed it shut off automatically after a minute of leaving the car.

    My Power Management is set to Energy Savings = ON but also with Always Connected = ON

    Aside: I'm not sure why it skipped Thursday the 17th. I thought I had it starting at 1am so I also don't know why the times varied. Data from teslalog.com

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  2. mercc3650

    mercc3650 Member

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    Thanks for sending.

    Wow, so your discharge rate is worse than mine. I have mine on Energy savings = Off (as don't want the 7-10 sec delay to start the car every time I get in the car) and Always connected = On

    I will have a report from Tesla by the end of the week hopefully depending on the other items they are looking into.
     
  3. K-MTG

    K-MTG Sunshade Captain of TMC

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    How did you obtain this charging data (images you attached)?
     
  4. SageBrush

    SageBrush Active Member

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    Around 100 watts.
    I'll be interested to read the breakdown of what uses how much
     
  5. scottf200

    scottf200 Active Member

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    There are several tools listed on TMC. Teslalog.com is what I'm using.
     
  6. scottf200

    scottf200 Active Member

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    7-10 sec delay? Did you try it / test it? I don't see that delay.
     
  7. mercc3650

    mercc3650 Member

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    What I meant to say was:

    I tried it with energy savings ON and maybe 5 sec to 7 sec delay as screen grayed out (like it was asleep ), so leave this OFF now. Likely has little effect on the discharge rate as we are both > 8 miles/24 hrs
     
  8. mercc3650

    mercc3650 Member

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    Glad you don't see that delay
     
  9. neroden

    neroden Happy Model S Owner

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    "Always connected" seems to consistently give a very high vampire drain. Have you measured it with that turned off?
     
  10. scottf200

    scottf200 Active Member

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    I have not because I want access to the car AND the last night of the info note stated "slightly more energy used". Slightly made it sound ... well like very little. :)
     
  11. Gwgan

    Gwgan Almost a wagon

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    I am seeing a 5% drop per day with the car on, doors opening and closing but not driving, while at the detailers since the 31st. 71% to 46% over a 120 hour period. I left it with Energy Savings ON but also Alays Connected ON. Climate is Off.
     
  12. mercc3650

    mercc3650 Member

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    I have not either as stated "slightly more energy used".

    @Gwgan--that is a lot of drainage.
    I don't know how the model S in the showrooms have 100's of people come in and out and with the lights on only drains 2 miles in 24 hrs...?
     
  13. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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    Ok, the reason you're losing that is that you have "always connected" checked and you're using continuous monitoring/logging. That's just a factor of the tools constantly hitting the car. If you want that data, you'll have to put up with the losses as the tools constantly keep the systems in the car awake as it polls all the data from the car's systems.

    If you turn off the logging from that website but leave the settings as-is, your vampire drain will be reduced. I had this happen to my Model S when energy savings first came out -- TeslaMS didn't have support for sleep mode and I ended up losing 10-12 miles per day.
     
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  14. loganintx

    loganintx Member

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    As a life long software developer and troubleshooter, my advice is to only make 1 change at a time and then monitor the result. Turn off the logging for a day or two and see what that effect is. Then you can turn it back on and see that the vampire drain goes back to 8ish miles/day. Make sure you can both discover the issue and recreate the issue.
     
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  15. SageBrush

    SageBrush Active Member

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    That explains it. Thanks. I've read that the Prius uses about 200 watts to be 'on,' but not moving and the ICE off. So the Tesla is actually doing relatively well for somewhat equivalent conditions.
     
  16. apacheguy

    apacheguy Sig 255, VIN 320

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    Turn always connected off. I've had terrible vampire drain when that box is checked on my S. Your car should sleep for 8-12 hours if it is allowed to enter deep sleep.

    Really? This seems odd to me. If always connected is checked then the CAN busses should be awake anyway to serve requests. It shouldn't matter how often you poll the API.
     
  17. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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    #17 FlasherZ, Apr 6, 2016
    Last edited: Apr 6, 2016
    If you're using any of the logging websites / programs, and it doesn't know how to handle sleep mode, the car will never sleep even with "always connected" turned off. This is because these types of logging keep the car awake. With TeslaMS, if you use the "sleep mode" flag (-z), the system will stop polling for 30 minutes once the car makes a transition from driving to parked so that it can allow the car to sleep. Once it falls asleep, it then uses non-intrusive polling (the /vehicles call) to determine if something else woke the car back up. The downside of that is that if you drive somewhere, stop for a minute to get a drink or something, then get back in the car, you won't get the data for up to 30 minutes because the software is in its "nap" mode waiting for the car to go to sleep. There's no way for it to continue polling without keeping the car awake.

    So if you want all the data, you put up with the vampire drain.
     
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  18. apacheguy

    apacheguy Sig 255, VIN 320

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    Correct. If you are streaming there is no way the car will ever sleep. Poll in 15-30 min intervals. That's what I do and I have no issues.
     
  19. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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    I presume you capture no streaming data then? or do you wait until a 30 minute poll shows activity, then turn on streaming?
     
  20. apacheguy

    apacheguy Sig 255, VIN 320

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    Only time I stream is for performance logging when the car is driving. Otherwise I just hit the charging and battery APIs. Aside: My Pi3 CAN perf logger is working nicely so I really don't need the streaming API anymore. I'll be pushing out some more updates on GitHub later this week.
     

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