1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Hybrid battery question

Discussion in 'Prius c Technical Discussion' started by fermuscolo, Jul 20, 2021.

  1. fermuscolo

    fermuscolo Member

    Joined:
    Apr 8, 2014
    53
    38
    0
    Vehicle:
    2012 Prius c
    Model:
    One
    I had a Hybrid system malfunction days ago, I had a problem before with the little computer inside the battery, no the car computer. I reset the warning with Torque app. It runs normal now but when I check with Torque the readings of each cell one is showing 0.2v less than all others. Example all shows 17.2 and this cell shows 17.0. Is anything I have to do and worry?
    The battery was replaced in warranty at 60.000 miles now car has 105.000 miles so 45.000 miles on this battery
    Thanks!!
    Prius C one 2012
     
  2. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,065
    14,972
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Can you relay what this "problem" was exactly?

    It's not a problem with the computer, if the computer is doing its job to notify you about the condition of the battery.
     
    fermuscolo likes this.
  3. fermuscolo

    fermuscolo Member

    Joined:
    Apr 8, 2014
    53
    38
    0
    Vehicle:
    2012 Prius c
    Model:
    One

    The first time was a little cockroach nest inside the computer, it was all dirty with eggs and what not inside. Now I cleaned around the battery spray insecticide plus new baits and its working good now. Im running with Torque app monitoring battery state in the look for something weird for a while till i see its back to normal. Do you know some video with instructions to change this computer?
    Thanks sorry for my English
     
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,571
    48,862
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i don't see a problem, why change the computer?
     
    fermuscolo likes this.
  5. fermuscolo

    fermuscolo Member

    Joined:
    Apr 8, 2014
    53
    38
    0
    Vehicle:
    2012 Prius c
    Model:
    One
    Well its better now, but like I said when first asked the Hybrid Malfunction warning appeared from time to time, also there was a different voltage readings in each battery module. The same problem I got years ago and was resolved cleaning the computer. An user of this forum sent me another computer at that time.
     
    bisco likes this.
  6. Danny13pruisc3

    Joined:
    Nov 8, 2020
    173
    27
    0
    Location:
    maryland
    Vehicle:
    2012 Prius c
    Model:
    Three
    When you get a malfunction get the code and post it. Until then no code no problem..
     
    fermuscolo likes this.
  7. fermuscolo

    fermuscolo Member

    Joined:
    Apr 8, 2014
    53
    38
    0
    Vehicle:
    2012 Prius c
    Model:
    One
    Is not giving any code now. What Im seeing that I didnt see before is that the battery is almost full and after a couple minutes I wasnt looking at dash it goes to almost empty, last two lines and then after continue riding it starts charging again.
     
  8. vvillovv

    vvillovv Senior Member

    Joined:
    Mar 19, 2013
    3,492
    1,231
    1
    Location:
    NY
    Vehicle:
    2017 Prius Prime
    Model:
    Prime Plus
    In other circles that is know as a negative re-calibration. Negative is not as bad and a positive re-calibration (when it goes from 2 bars to fuil in a very short time), but it is a sign that the traction pack needs some help. Grid Charge and/or full cycling to balance the pack.

    Keep you eyes on the gauge, if it happens every day that's a clear sign.

    edit DrPrius app / bluetooth ODB2 adapter and some screenshots of the app posted can help keep track of how good or bad the battery is.
     
    #8 vvillovv, Oct 2, 2021
    Last edited: Oct 2, 2021