Reconditioning Experience with Hybrid Automotive's Prolong System

Discussion in 'Gen 2 Prius Main Forum' started by biglew8, May 16, 2017.

  1. JC91006

    JC91006 Senior Member

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    When did HA decide it's not good to go down to 17v? Dang, I just got a recent warranty replacement and it goes down to 17v
     
  2. WilDavis

    WilDavis Senior Member

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    I did my most recent FullMonty just over a week ago, and I took it down to 17V just like I'd done in all the eleven (yes, 11) previous occasions! @jeff652 might be the best person to answer your question! - Good luck! ;)
     
  3. JC91006

    JC91006 Senior Member

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    Although I have the 17v discharge setting, I have only gone down to 17v with 2 batteries. I've stopped at 84v nearly every discharge
     
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  4. Raytheeagle

    Raytheeagle Senior Member

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    That’s the lowest I’ve gone even though we had the 17volt setting too;).

    Had a healthy battery, so didn’t see the need to:).

    What cars do you have left after your recent purge:whistle:?
     
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  5. Bunce

    Bunce Member

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    Todays data, on charge overnight now.


    Plugged in at 06.30
    06.25.19 9.30 241 0.349
    06.25.19 11.00 240 0.349

    06.25.19 Start discharge
    06.25.19 11.00 237 1.51
    06.25.19 13.10 193 0.491
    06.25.19 14.30 185 0.487
    06.25.19 15.50 177 I forget
    06.25.19 16.45 172 0.478
    06.25.19 18.50 163 0.272
    06.25.19 21.05 141 0.259

    06.25.19 Start charge
    06.25.19 21.35 151 0.002
    06.25.19 23.20 213 0.35

    That's an increase of 62v in 1h45mins, that seems like a lot, quite fast, no?
     
  6. Raytheeagle

    Raytheeagle Senior Member

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    Seems good to me:).

    Good luck through the rest of the process (y).
     
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  7. srellim234

    srellim234 Senior Member

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    The quick increase is very normal when you first start charging after a discharge. In fact, my 84v discharge the other day rebounded upwards to 173v before I even hooked the charger up!
     
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  8. srellim234

    srellim234 Senior Member

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    Final charge is progressing nicely.

    Tues. 8:30 pm 222v
    Wed. 6:00 am 233v
     
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  9. srellim234

    srellim234 Senior Member

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    Wed. 9:30 pm in the process of going from 239v to 240v.
     
  10. srellim234

    srellim234 Senior Member

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    All done! At 5:30 when I got up the screen was at 241v, meaning each of the last two volts took 4-5 hours to get in there. It's the first time I've gone to the 48 hour limit of a charge HA warns about. Unplugged it at 5:30; the car will sit in the garage until 10:00 when I have to haul a bunch of bottles and cans to the recycling center.

    Not only is the battery going to be better balanced again, it appears I recovered a couple of volts in the process. I'm hoping that's a result of breaking up a little crystallization at the lowest end discharge.

    BTW, when I fold down the back seats the Prius holds $40-50 worth of plastic bottles.

    (y):)(y)
     
  11. mjoo

    mjoo Senior Member

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    My last 17 V discharge took around 6 - 6.5 hours to complete which works out to ~ 6500 mAh (average discharge around 1A). That was my third reconditioning. Not bad for a 10 y/o battery!

    The annoying thing is the reconditioning takes longer now.
     
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  12. srellim234

    srellim234 Senior Member

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    The week's worth of down time is inconvenient but fortunately I'm retired and we have a second car at our disposal.

    This was my fifth full reconditioning, done at 6 month intervals, with "charge and balance" only sessions done at the three month mark between them. Over that time frame the price of a new battery pack has gone down more than I paid for the Prolong system so it has already paid for itself.

    I'm a happy camper.:)
     
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  13. Sanjay Goel

    Sanjay Goel Member

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    I would be happy considering that your battery modules are recovering their lost capacity - which is why the discharge times are increasing.

    Hare Krishna!
     
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  14. mjoo

    mjoo Senior Member

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    There was some tongue-in-cheek in that last sentence
     
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  15. Bunce

    Bunce Member

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    So, re-conditioning done, test drive completed and no noticeable difference. That's a good thing since I was afraid something would break. Perhaps a longer test drive will show something. TBD
     
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  16. Bunce

    Bunce Member

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    Do you guys disconnect the 12v battery at all to reset the ECU after a recondition?
     
  17. Raytheeagle

    Raytheeagle Senior Member

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    Nope;).

    Drive and enjoy(y).
     
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  18. srellim234

    srellim234 Senior Member

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    I don't.
     
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  19. WilDavis

    WilDavis Senior Member

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    Me neither! ;)
     
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  20. Bunce

    Bunce Member

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    Just got back from a 50 mile test drive and all was good. The battery remained at 6 bars for most of the journey. We live on an old volcanic vent and have to climb about 600ft every time we come home. This was kicking the batteries arse, not this time, it stayed at 6 bars.
    Thanks for the help and advice fellas. Cheers.
     
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