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Officially joining the club

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by markabele, May 21, 2013.

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  1. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Some questions:

    Are partial charges ok? I have some really unpredictable days sometimes. Can I charge up about half way and leave it that way for a day or more?
     
    #41 markabele, Jun 7, 2013
  2. drinnovation

    drinnovation EREV for EVER!

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    Yes, not a problem to do partial charges. In fact if you are going to leave it sit at high temperature it can be even better. Ideally you want it to finish charging just before you use it.
    Of course you then risk not having a full charge when you need it.
     
    #42 drinnovation, Jun 7, 2013
  3. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    So leaving it at 50-60 percent is ok for 24-48 hours?
     
    #43 markabele, Jun 7, 2013
  4. CharlesH

    CharlesH CA HOV Decal #5 on former PiP

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    The old Nickel-Cadmium rechargeable batteries had a problem with partial charges, leading to a "memory effect" and the advice to charge them completely. The Lithium-Ion batteries used in the PiP (and the Nickel-Metal-Hydrid batteries used in the standard Prius, for that matter), do not have this problem.
     
    #44 CharlesH, Jun 7, 2013
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  5. drinnovation

    drinnovation EREV for EVER!

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    Leaving it at 50-60 percent for months is probably okay. 40-50% is the ideal long-term storage charge level for Li-Ion.
     
    #45 drinnovation, Jun 7, 2013
  6. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    So if I put an end time for the timer with a half charge already in the battery does the timer then start charging about an hour and a half before the end time?
     
    #46 markabele, Jun 8, 2013
  7. drinnovation

    drinnovation EREV for EVER!

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    Approximately. I recommend you aim for 30min or even a hour before you leave in case something comes up and you have to leave early. Most important thing is not to charge when its really hot, so even if it finishes at 5am in Nebraska it should be fine till you leave in the AM.
     
    #47 drinnovation, Jun 8, 2013
  8. Tideland Prius

    Tideland Prius Moderator of the North
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    As in air temperature or as in when the car is really hot (i.e. after a long drive)?
     
    #48 Tideland Prius, Jun 8, 2013
  9. Tideland Prius

    Tideland Prius Moderator of the North
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    That's what I've noticed too when I test drove the PHV. P&G probably still works but maybe it needs to be modified? I didn't have time to try it out since I wanted more time in the RAV4 EV :)
     
    #49 Tideland Prius, Jun 8, 2013
  10. drinnovation

    drinnovation EREV for EVER!

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    Its all about the battery temperature. Air temp can get the battery hot, but so can heavy battery use. In generally best to charge when the air and the battery are both cool, since the prius does not have a liquid TMS as some others do. If one sets it to charge by early morning it will allow both air and th car/battery to cool. But all of this is a secondary concern for the Plug in Prius as the battery is small enough and if charging on L1 is slow enough that its probably not much of an issue. Temp induced loss was an issue for leafs, but they were L2 and QuickCharge users often going to 100% (prius protects it not letting people go to 100%). And even for those leafs it was an issue in AZ, with almost no measured impact in cooler places like seattle or even northern Cali. Canada.. you're probably cool.
     
    #50 drinnovation, Jun 8, 2013
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  11. Tideland Prius

    Tideland Prius Moderator of the North
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    Thanks!

    lol. It can hit 30+°C in many places in Canada (38°C in south-central British Columbia where the cacti can be found). Some are dry heat (Prairies or south-central BC), others are humid (southeastern prairies and southern Ontario). Heat can be an issue. (and also why I love my Solar Panel Ventilation System)
     
    #51 Tideland Prius, Jun 8, 2013
  12. drinnovation

    drinnovation EREV for EVER!

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    30C is near ideal temps for LiIon -- more range fromt he battery with little risk to battery.
    Don't think a few days of even mid to upper 30's C sort are a big problem, though best not to leave it with a full charge in the sun when in the upper 30s Its weeks mid to upper 40s's that really toasted the leafs in AZ -- air temps there are regularly 46-47 and a car on hot backtop can hit 50+ inside.
     
    #52 drinnovation, Jun 9, 2013
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  13. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    After preliminary tests it looks like the stop timer simply starts it 3 hours before then end time regardless of how much charge is left.
     
    #53 markabele, Jun 9, 2013
  14. bisco

    bisco cookie crumbler

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    pip manual says to discharge to zero ev for long term storage. for short term. i leave it around 50%, that's when the level 2 evse is worth it, only 45 min. to top up.
     
    #54 bisco, Jun 9, 2013
  15. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    Finally had my first chance to do some old school (as in not that many months ago with the last Gen3 I had) pulse and gliding since it was my first time out of EV and not at highway speeds. Like riding a bike, although I was just a tad rusty.

    Why is the warmup cycle so dang long compared to the Gen3?
     
    #55 markabele, Jun 10, 2013
  16. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    Yes, it says to zero EV, which means about 20-25% actual.

    Mike
     
    #56 3PriusMike, Jun 10, 2013
  17. bisco

    bisco cookie crumbler

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    right. but the only thing you can tell without a scan gauge is zero.
     
    #57 bisco, Jun 10, 2013
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