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pip sat in my garage for one month

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by bisco, Mar 18, 2013.

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  1. Andyprius1

    Andyprius1 Senior Member

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    I left my 2012 with a full charge and went to Germany for 2 months, I disconnected the 12 V also. When I returned everything was up and ready to go.
    To deplete any charge and then leave it for months is not logical, science or not! Sounds more like Black Magic. Have fun in FL Bisco.

    You got that right! ( referring to 2nd. para. )
     
    #21 Andyprius1, Jan 17, 2019
    Last edited: Jan 17, 2019
  2. jerrymildred

    jerrymildred Senior Member

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    Agreed. The manual specifically says to not leave a full charge in the battery for long periods. There's no point in them saying to not have it at 100% SOC since it's not possible to get it to 100%. Full charge simply means all the system will put into the battery.

    And I have personally verified that the traction battery charger only trickle charges the 12V while it is charging the traction battery. If it's done or it's waiting on the timer for permission to start, there is no trickle charge happening.
     
    #22 jerrymildred, Jan 17, 2019
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  3. bisco

    bisco cookie crumbler

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    thanks andy, we hope too!

    why do you say a li-on battery left at the percentage after the wall charge is used up is not logical?
     
    #23 bisco, Jan 17, 2019
  4. Andyprius1

    Andyprius1 Senior Member

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    How does one use a wall charge up? Theres always more, inside the wall.
     
    #24 Andyprius1, Jan 17, 2019
  5. bisco

    bisco cookie crumbler

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    drive it until the engine starts, then put her up wet
     
    #25 bisco, Jan 17, 2019
    Last edited: Jan 17, 2019
  6. Andyprius1

    Andyprius1 Senior Member

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    Where do I find a hep?
     
    #26 Andyprius1, Jan 17, 2019
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  7. bisco

    bisco cookie crumbler

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    in the hep department, 8th floor:p
     
    #27 bisco, Jan 17, 2019
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  8. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    Why not plug the car in the 120v and put the cord on a timer? Set the timer to go on for 5 minutes every day.
    Start with the traction battery at about 0.0 miles. The PIP takes about 150 minutes or so to fully charge...so after 30 days it will just be about at full charge, except for some losses.

    Mike
     
    #28 3PriusMike, Jan 17, 2019
  9. bisco

    bisco cookie crumbler

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    interesting idea. would this be to keep the 12v topped up? a battery tender might be easier. but I'm in full on experiment mode now. i want to see how much it drains after 68 days in the cold. going to be single digits next week.
     
    #29 bisco, Jan 17, 2019
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  10. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    Dual purpose. 12v stays charged. Car is fully charged when you return. Doesn't stay at full charge the whole time.
    Li-ion batteries are supposed to self discharge a few percentage per month. But the car is also consuming some to check for key FOB.

    Mike
     
    #30 3PriusMike, Jan 17, 2019
  11. bisco

    bisco cookie crumbler

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    maybe 2 minutes a day in 2020 :cool:

    does the evse work when you power it on/off at the wall plug?
     
    #31 bisco, Jan 17, 2019
  12. Mendel Leisk

    Mendel Leisk Senior Member

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    It's too painful to follow this saga, said the man with the constantly hooked up CTEK...
     
    #32 Mendel Leisk, Jan 17, 2019
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  13. bisco

    bisco cookie crumbler

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    i'm fully prepared to replace the 12v when i get home if necessary, it's 7 years old anyway.

    but i'm feeling lucky ;)
     
    #33 bisco, Jan 17, 2019
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  14. Mendel Leisk

    Mendel Leisk Senior Member

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    That's elder abuse...
     
    #34 Mendel Leisk, Jan 17, 2019
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  15. bisco

    bisco cookie crumbler

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    7 years is just a baby to me :unsure:
     
    #35 bisco, Jan 17, 2019
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  16. Mendel Leisk

    Mendel Leisk Senior Member

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    Even worse... :p
     
    #36 Mendel Leisk, Jan 17, 2019
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  17. bisco

    bisco cookie crumbler

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    dog years
     
    #37 bisco, Jan 17, 2019
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  18. Mendel Leisk

    Mendel Leisk Senior Member

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    Pretty much.

    Did you notice my second foray at checking your pop-the-hood-the-night-before rule, for checking voltage. This time I did leave the hood ajar, then night before, so no need to open any doors.

    Battery voltage before any door opening: 12.99
    And after opening driver's door (triggering the brake pressurizing or whatever): 12.62

    Have to grudgingly admit: quite a difference.
     
    #38 Mendel Leisk, Jan 17, 2019
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  19. bisco

    bisco cookie crumbler

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    wow! is that the original battery? 12.99 is pretty sweet!
     
    #39 bisco, Jan 17, 2019
  20. Mendel Leisk

    Mendel Leisk Senior Member

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    It's an optima yellow top installed sept 2015. I've gradually come full circle from periodic driving to keep it charged, to just keeping it on CTEK life support. How long will a battery last if it's constantly one of two things: being used or on a smart charger? Guess that's my science experiement lol. Basically if the car's been driven I'll let it sit overnight, but the next morning on goes the CTEK, and stays thus till the next drive. Quick connect makes it easy, just need to pop the hood and the connector is there.
     
    #40 Mendel Leisk, Jan 17, 2019
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