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Sudden death of hybrid battery??

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by greyprius2008, Jan 3, 2017.

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  1. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
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    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    What does Dr Prius show for block voltages? In particular the "Voltage Diff" value. If you have a typical bad module, then the affected block voltage will be 1.0-1.5V lower than others (often only when the battery is being discharged at 20-30 amps or more). Voltage will go higher than others when charging (such as regen braking).

    If one block has wildly different voltage then it could have a problem with the small wires that connect the HV battery to the battery ecu- or there could be corrosion damage to that connector and the ecu.

    Need more data to be able to advise you.

    Posted via the PriusChat mobile app.
     
    #21 mr_guy_mann, Sep 9, 2021
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