Prolong Charge - Full Monty

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by WilDavis, Dec 26, 2018.

  1. WilDavis

    WilDavis Senior Member

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    OK, it's that time of the year, and what better way to finish 2018, than with a Full Recondition of Chuggy Pig's Hybrid battery! There are so many other threads on methods, results etc. etc. that I got fed up with searching, and so thought I'd start a new one!

    The Full Monty:
    Date: 20181226 OD: 144426
    13:45 start 234V 356mA
    16:35 244V 356mA (…wow! only 3 hours and we're up to 244V already! …a Good Sign? …perhaps? …we will see!)
     
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  2. srellim234

    srellim234 Senior Member

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    I definitely would avoid "long soaking" it. I know you had high numbers last time, too, but I agree with JC91006 that going too much above 242v is pushing that 100% charge level. If it's still going up easily, great. No need to get greedy with it, though.
     
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  3. Raytheeagle

    Raytheeagle Senior Member

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    Stick to 4-6 hours of stability and call it good;).

    So far looks great:).

    Enjoy the next 2.5 days of reconditioning fun(y).
     
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  4. WilDavis

    WilDavis Senior Member

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    …so far:

    Full Monty:
    Date: 20181226 OD: 144426
    13:45 start 234V 356mA
    16:35 244V 356mA
    21:08 247V 356mA
     
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  5. Raytheeagle

    Raytheeagle Senior Member

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    Outside temp:whistle:?
     
  6. WilDavis

    WilDavis Senior Member

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    28F outside. low 30s inside garage, I'll leave it until 9:45 tomorrow morning (20 hours), then start the 1st discharge (-->134V)
     
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  7. Raytheeagle

    Raytheeagle Senior Member

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    Not back for a New England night;).

    The pack should be ready for a discharge in the morning(y).
     
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  8. WilDavis

    WilDavis Senior Member

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    I was amazed as to how soon (3hrs) it got to 240V, looking back at my records I find that in my earlier "Full Montys" it took 20+ hours to get that high! o_O;)
     
  9. Raytheeagle

    Raytheeagle Senior Member

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    Did you start at 234 last time?

    Did you force charge to that level prior to shutting her down?

    I agree that is fast, but the last top end balance I did had a similar phenomenon.

    So I wrote it off and just drive it(y).
     
  10. WilDavis

    WilDavis Senior Member

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    I've been somewhat wary of "force-charging", but I've noticed over the past few months that the SoC has been spending more time in the mid to high 70% range, reaching 82% at one point a couple of days ago, after spending some time in Yule Traffic here in the North East! ;)
     
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  11. Raytheeagle

    Raytheeagle Senior Member

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    There’s traffic up there in your neck of the woods:ROFLMAO::ROFLMAO::ROFLMAO:.

    Force charging isn’t bad for the car, it just keeps the battery at the top end and is rather inefficient but in certain circumstances makes sense;).

    Like cutting time off of a top end charge:).

    As someone with a couple of kids and a demanding professional job, time is a precious commodity, but a reliable mode of transportation also has extreme importance (y).
     
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  12. WilDavis

    WilDavis Senior Member

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    Here's all the data collected so far:

    Full Monty:
    Date: 20181226 OD: 144426
    13:45 start 234V 356mA
    16:35 244V 356mA
    21:08 247V 356mA
    10:15 250V 356mA
    00:15 250V 356mA 34h 35m?

    Discharge to 134V
    4h 25m 195V 0.60A
    5h 30m 192V 0.50A
    6h 20m 153V 0.22A
    6h 25m 134V 0.22A

    Start @ 07:00
    11:17 221V 357mA
     
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  13. WilDavis

    WilDavis Senior Member

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    20:00 231V 357mA
    07:00 247V 356mA
    18:20 247V 356mA
    Discharge to 84V

    start @ 18:25 247V 2.45A
    23:35 134V 0.22A (5h 35m)
    00:12 84V 0.22A

    Charge3
    start @ 00:15 197V 356mA
    11:00 230V 356mA
    20:30 245V 356mA (20h 15m)
    07:25 249V 356mA (31h 10m)
     
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  14. WilDavis

    WilDavis Senior Member

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    10:45 249V 356mA (34h 40m)

    Discharge to 17V
    start @ 10:45 249V 2.30A
     
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  15. Raytheeagle

    Raytheeagle Senior Member

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    Do you always do the 3 cycle reconditioning?
     
  16. WilDavis

    WilDavis Senior Member

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    …every 6 months or so, and do the singletons every 3 months (…I follow @jeff652 's recommendations! :rolleyes:;))
     
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  17. Raytheeagle

    Raytheeagle Senior Member

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    Interesting:).

    I also follow his advice of if the battery is showing good health, to dial back the process;).

    I follow the mantra of less is more but do what works for you. Seems your battery is in good health, so the process is working:).

    Happy new year (y).
     
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  18. WilDavis

    WilDavis Senior Member

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    Et tu, @Raytheeagle ! I get what you're saying, but in order to do a true comparism would involve having bought a used 2009 Prius back in early 2014 and NOT invested in a Prolong System as a preventative maintenance measure. All I can say is that is seems to be working as intended! …and as far as value of insurance goes (…marginally applicable in this case) check out the thread The case for having a Dash-Cam… | PriusChat
    (…which, BTW, I'd only fitted to the car a couple of weeks before being whacked by the red-Honda!)

    ;) Happy New Year!
     
    #18 WilDavis, Dec 31, 2018
    Last edited: Dec 31, 2018
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  19. Raytheeagle

    Raytheeagle Senior Member

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    While it is hard to get an “apples to apples” comparison, I was speaking more to if you are seeing good performance, adjusting your treatment;).

    Batteries are finite and only have so much they can give. So if I’m on a pitch count, I’m saving mine if possible :).

    I remember your encounter thread. It hasn’t spurned me getting a dash cam yet, but possibly when our 2010 gives up the ghost, I might splurge for a dash cam, clear film application and window tinting for its replacement ;).

    With the Prolong equipment though, I think the ICE will give way before the battery does:cool:.

    Enjoy your new year(y).
     
  20. WilDavis

    WilDavis Senior Member

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    Discharge to 17V
    start @ 10:45 249V 2.30A
    13:35 202V 1.20A
    15:05 191V 0.22A
    16:10 100V 0.22A
    16:15 86V 0.22A
    16:40 32V 0.22A
    16:48 17V 0.22A (6h 03m)
    Start final soaker:
    16:50
     
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