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USB/Power Socket - Not Always On

Discussion in 'Model S: Interior & Exterior' started by Vince Cobelo, Jan 14, 2016.

  1. Vince Cobelo

    Vince Cobelo Member

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    If there is one thing that irritates the hell out of me it's that the usb's and power socket aren't always on. Why the heck would they turn off with the car and stop charging a phone. It sure isn't going to kill a battery putting out only 1-2 amps.

    Tried doing a search but can't find any modification thread for this. Has anyone modified any of their ports to be always on? If so, where did you connect to power? I did it in my truck to the two power sockets with no problems.
     
  2. FlasherZ

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

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    Newer VIN constant 12v power options (dashcam)?

    There is a connector that you could use to swap in a +5V supply of your own choosing just behind the touchscreen, I believe in the panel at the passenger footwell. There are more threads around here. The thread posted above talks about where to find constant +12V. I can't find the thread I was thinking of where it was discussed adding a better power supply, but I'm sure someone else might remember.
     
  3. mknox

    mknox Well-Known Member

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    Not sure about the USB ports, but there was also a thread showing where to find the relay for the 12v socket in the fuse panel and how you could pop it out and install a jumper so it stays on all the time.
     
  4. HankLloydRight

    HankLloydRight Fluxing

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    As mentioned in the other thread, the OBDII port offers constant +12v without splicing.
     
  5. Vince Cobelo

    Vince Cobelo Member

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    I'd like to find that thread.
     
  6. trils0n

    trils0n 2013 P85

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    Here it is, with pictures.
     
  7. Vince Cobelo

    Vince Cobelo Member

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    BEAUTIFUL! Thank you Thank you Thank you.
     
  8. Tree95

    Tree95 Member

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    You're welcome.
     
  9. tliving

    tliving Member

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    If you want to use the ODBII connector for permanent 12V power you can hack together a cable that does just that. Just need to pick the correct 2 wires which is pretty easy. My hack job looked like this:
    img_4036.jpg
    The parts cost $18 and it took about 5 mins to cut the ends and solder the wires. Not a permanent modification to the Model S, just plugs into the ODBII. I use it for my dash cam.
     
  10. mknox

    mknox Well-Known Member

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    Nice, but how many amps can the OBD II port deliver and is it fused anywhere? I would probably want to throw an in-line fuse into that assembly if it were me.
     
  11. Tree95

    Tree95 Member

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    Yes, it is fused. See owner's manual for location and size. 5A rings a bell, but it's been a while since I looked.
     

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