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Which battery powers the trunk 12 Volt plug?

Discussion in 'Model X' started by de704, Oct 27, 2016.

  1. de704

    de704 XP268

    Joined:
    Dec 6, 2009
    Messages:
    355
    Location:
    Lawrenceville GA
    Hello All,

    I have a few questions about the 12-Volt plugs in the Model X.
    1. I believe the 12-Volt plug in the trunk of the Model X is powered by the main battery but I want to double check. Does anyone know if it is for sure?
    2. Can both 12-volt plugs (Trunk & cigarette lighter) be used at the same time without issue?
    3. Can the 12-volt plug be used for long periods of time without issue? Hours and hours
    Thanks in Advance
     
  2. travwill

    travwill Active Member

    Joined:
    May 1, 2015
    Messages:
    1,199
    Location:
    Chicago, IL
    From what I understand, all the car's electronics are powered from the 12-volt. I.e. the locks/doors/FWDs, 12 volt plugs (both), display units, lights, LTE, etc. That is just how it works and is designed which is typical.

    The 12 volt will discharge over time in hours if you are heavily using it but it should get recharged by the main battery as needed. Being lead acid they can be deeply discharged fine but don't last nearly as many full cycles on lithium ion, thus may require replacement more often if you tax that battery more. Just the car alone using them is an issue compared to ICE cars that use them a bit less, or it was a couple years ago...
     
    • Like x 1
  3. de704

    de704 XP268

    Joined:
    Dec 6, 2009
    Messages:
    355
    Location:
    Lawrenceville GA
    Ok thanks,

    I had a call into Tesla & they just called back and confirmed that the only thing the main pack does is move the wheels like a gas tank (for lack of a better analogy).

    The 12 volt powers everything else including the doors,screen, USB and 12-volt plugs.
     

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