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120 discharge rate on hard acceleration?

Discussion in 'Gen 2 Prius Main Forum' started by kenneth winter, Apr 6, 2021.

  1. kenneth winter

    kenneth winter Junior Member

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    Vehicle:
    2008 Prius
    Model:
    III
    I was amazed to see a discharge rate of over 120 amps on hard acceleration!!! Is this correct. Based in the suggested charge rate of 1c for individual modules, I never dreamed it would pull that many amps.
    When functioning normal. What charge and discharge rate does the car produce when driving?
     
    #1 kenneth winter, Apr 6, 2021
    privilege likes this.
  2. mr_guy_mann

    mr_guy_mann Senior Member

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    Vehicle:
    2006 Prius
    Model:
    Four
    I have a 2006 that I "refurbished" the HV battery on at 160k. During a HEAVY accel I see 150A discaharge and maybe 100A charge during hard braking. Mind you this only lasts for some tens of seconds at most. Typical driving might be 0 to +/- 40A.

    Toyota helped design these modules specifically to handle the brief high currents in normal use, but only within a certain state of charge range. You want the current to be MUCH lower when you fully charge/ discharge the modules- otherwise the heat build up would ruin them.

    Posted via the PriusChat mobile app.
     
    #2 mr_guy_mann, Apr 6, 2021
    Last edited: Apr 6, 2021
  3. kenneth winter

    kenneth winter Junior Member

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    Location:
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    Vehicle:
    2008 Prius
    Model:
    III
    If you have a moment to chat about your rebuild, please give me call. 423-526-132eight

     
    #3 kenneth winter, Apr 6, 2021
    Last edited by a moderator: Apr 7, 2021
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