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12V battery disconnect while on vacation

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by whataboutbob, May 30, 2024.

  1. whataboutbob

    whataboutbob Junior Member

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    2010 Prius with a fairly new 12V battery replaced within the last year. I am traveling for a month and would like to disconnect the 12V battery to prevent battery drain. So far as I know, here's what I need to do:
    1) Disconnect the negative terminal and wrap it in a ziploc bag to avoid touching anything else
    2) Place a towel in the latch hole and gently close the trunk over it so I can easily open it back up on return to reconnect the negative terminal
    3) Reprogram a bunch of settings like radio, trip data, etc. since they will be reset.

    Anything else I missed?
     
    #1 whataboutbob, May 30, 2024
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  2. rjparker

    rjparker Tu Humilde Sirviente

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    I would simply unplug the white cable in the engine fuse box and put that connector in a baggie.

    The radio presets should still be there. Set the clock. Trips will zero.


    White cable from battery
    * 125a fuse visible from top.jpeg

    Spot on schematic
    IMG_5229.jpeg

    If you need to lock it use the mechanical key.
     
    #2 rjparker, May 30, 2024
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  3. whataboutbob

    whataboutbob Junior Member

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    IMG_9521.jpg View attachment 255320

    Ah I didn’t know that’s an option too, so you mean disconnect the white connector as circled in red?
     
    #3 whataboutbob, May 30, 2024
    Last edited: May 30, 2024
  4. rjparker

    rjparker Tu Humilde Sirviente

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    Yes
     
    #4 rjparker, May 30, 2024
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  5. Tombukt2

    Tombukt2 Senior Member

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    What's your battery is dead in the month you need to be figuring out why In generation 3's may be in a generation two now I leave them sitting for months sometimes at a time in the right outside my window might just don't have time to drive it that day or whatever and so on and when I do get around to starting it crap 60 days is going by
     
    #5 Tombukt2, May 30, 2024
  6. Mendel Leisk

    Mendel Leisk Senior Member

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    I've found a pair of leather gloves handy: stuff the loose end of the neg cable into one, and lay the other over the hatch latch.
     
    #6 Mendel Leisk, May 30, 2024
    StarCaller and whataboutbob like this.
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