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charging question

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by coolcarguy, Jul 25, 2014.

  1. retired4999

    retired4999 Prius driver since 2005

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    I think if you check at about 2 hours and 40 Minutes it will be done charging,no? (y)
     
  2. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    For you guys where it takes 3 hours to charge...what do you think the difference is from the rest of us that charge in about 2.25 hours? Serious question...maybe it's been answered before.
     
    retired4999 and rogerv like this.
  3. rogerv

    rogerv Senior Member

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  4. vvillovv

    vvillovv Senior Member

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    maybe not keeping track of the actual time?
    Mine says 3 normally with no ev left or 3.1 if I empty the pack.

    edit
    to reduce confusion, I hope anyways....

    using the 120v oem charger mine says 3 hours to charge at the beginning of the charge cycle with no ev miles left and 3.1 hours to charge if I empty the pack all the way so the battery display gauge shows the two purple bars, at around 18% SOC.

    It never takes 3 hours to complete.
    At around .5 (30 minutes) left, the charge rate drops from 1.0kw to 0.5 kw and continues charging for .1 to .2 (6 to 12 minutes) instead of the .5 (30 minutes) the timer shows.
     
    #24 vvillovv, Jul 28, 2014
    Last edited: Jul 29, 2014
  5. bisco

    bisco cookie crumbler

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    i don't know for sure, i have upgrade 200 amp 120v power. the only thing i've noticed in the ten years we've been in this house is that the lights dim for a millisecond every 10 or 15 minutes.
     
  6. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    hmmm...anything at all you can think of causing that outlet to get slightly less power than it should have?
     
  7. bisco

    bisco cookie crumbler

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    no, it's all brand new. breaker, wire and outlet. amps and volts test correctly, i don't know what else can be measured? and L1 is 3 hours, L2 is 90 minutes. that's the spec, the question may be, why are some (most?) charging faster?
     
  8. vvillovv

    vvillovv Senior Member

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    iirc the instructions say to use a dedicated 20A circuit for the OEM evse
    so if bisco is plugging into a 15A circuit with lights on the circuit as well that might explain that issue.
    bisc?
     
  9. bisco

    bisco cookie crumbler

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    nope, brand new circuit, double breaker, 10 ga. wire and 240v outlet. open source evse. before that, it was brand new breaker, 10 ga. wire and new 120v outlet, oem evse. and i use the oem evse on an outside outlet at work that i tapped off of my office outlet, so shared, and that takes 3 hours as well.
     
  10. vvillovv

    vvillovv Senior Member

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    I doubt that there is a substancial difference in the charge times listed in this thread.
    Coolguy just got his car and most of his numbers match mine and are only slightly different from what I see you guys posting too.

    I edited yesterdays post above with
    edit
    to reduce confusion, I hope anyways....

    using the 120v oem charger mine says 3 hours to charge at the beginning of the charge cycle with no ev miles left and 3.1 hours to charge if I empty the pack all the way so the battery display gauge shows the two purple bars, at around 18% SOC.

    It never takes 3 hours to complete.
    At around .5 (30 minutes) left, the charge rate drops from 1.0kw to 0.5 kw and continues charging for .1 to .2 (6 to 12 minutes) instead of the .5 (30 minutes) the timer shows.

    with an older pack or for people who don't empty the pack charge before plugging in ( variables ) , that topping zone of 0.5kw may last longer then it does with a newer pack.
    I'll have to wait for my pack to age or change the way I charge the car before I'll know for sure.
     
    #30 vvillovv, Jul 29, 2014
    Last edited: Jul 29, 2014
  11. bisco

    bisco cookie crumbler

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    mine is 27 months old, has 14,000 ev miles and takes the same amount of time to charge as when new.
     
  12. bisco

    bisco cookie crumbler

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    i just plugged in. had a few miles of ev left. after 10 minutes, i checked the screen: 1.9 kWh, 1.4 hours left, 4.9 miles ev estimate. there's no way it's gonna take 1.4 hours to finish.
     
  13. bisco

    bisco cookie crumbler

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    50 min. mark, still charging at 1.9 kWh, 14.2 ev estimate, .6h left to finish. final ev estimate should be 15.3.
     
  14. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    The car does not know if you are plugged into a 15A circuit or a 20A circuit. It only can sense the voltage.
    You could plug it into a 120v circuit that has a 5A breaker and the car would start charging. It would then trip the breaker.

    Mike
     
  15. coolcarguy

    coolcarguy New Member

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    so theres two battery icons the first with solid bars is the EV range, and then the hybrid battery gauge. and so far i never completely drained the hybrid battery portion. is it possible to drain the hybrid battery portion too ? will that make the charge time longer ? sorry lots of questions i just got the car.
     
  16. bisco

    bisco cookie crumbler

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    no, the lowest it will go is two purple bars, the it's ice time. if you want to see it, simulate stop and go in a parking lot.
     
  17. CharlesH

    CharlesH CA HOV Decal #5 on former PiP

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    The only way I know of to go below two HV bars is to be out of gas, so the ICE cannot start. But this risks running the traction battery below the threshold where it disables itself, and a proprietary Toyota charger (that dealers allegedly have) is required to re-enable it. Not to mention the risk of causing permanent damage to the battery.
     
  18. vvillovv

    vvillovv Senior Member

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    The two purple bars are not something a normal driver would ever see.
    If you want to see them you can do so by running ev all the way to 0 where the ICE typically switches on.
    Then you have to figure out how to force the ICE to stop and crawl at very slow speed and watch the HV battery display closely.
    As the HV battery display drops you have to go slower and slower to keep the ICE from turning on.
    Any incline at the lower bars of the HV battery display will turn the ICE on, and there are assorted other conditions that will prevent you from seeing the two purple bars.
    You need to experiment with your driving style and your car.
    SOC, when the 2 purple bars are showing on the battery gauge display, is around 18 or 19% and normal bottom of the ev battery gauge display is around 23% SOC.
    Whether that 4 or 5% SOC is enough of a difference to cause battery lifecycle deterioration is for you to figure out, unless someone has documentation on it.
     
  19. retired4999

    retired4999 Prius driver since 2005

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    On my 2005 Prius I would see the purple bars once in awhile. I think it was when the car decided to do maintance on the battery.
    On my plug in, I don't remember ever seeing purple bars. Then again I'm not trying to see them!
    I guess I will have to watch a little closer!:)
     
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  20. bisco

    bisco cookie crumbler

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    i never run out of ev in the situations that made my lift back run down that low.