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Weird readings while cycling modules

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Lone_Cricket212, Oct 10, 2023.

  1. Lone_Cricket212

    Lone_Cricket212 New Member

    Joined:
    Oct 8, 2023
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    Location:
    New York
    Vehicle:
    2004 Prius
    Model:
    II
    So I recently got the red triangle of death. Brought the car home and took the battery out. One module (19) had a lower voltage (6.84) than the rest (8.11-8.15)

    I also wanted to cycle the modules to check the capacity.

    I'm using the following settings:
    Capacity Cut-off......7500

    Then PROGRAM SELECT----NiMH Battery
    NiMH CHARGE 3.0A
    NiMH DISCHARGE 3.0A 6V
    NiMH CYCLE D->C

    These are the discharge/charge results I've gotten this far:
    1 708/4144, 1048/3415, 967/6313, 854/7500 (ending voltage: 7.97)
    8 109/1050, 792/2618, 1040/900, 691/3562, 791/4147 (ending voltage: 7.87)
    15 64/4095, 1111/4027, 835/1891, 883/5526, 787/3689 (ending voltage: 7.93)
    28 407/3748, 1609/4218, 1350/4080, 1282/4040, 1210/4341 (ending voltage: 7.94)

    I'm not sure what to make of this. Are they all in really bad shape and just have to be cycled many times? Or are they all beyond repair? I feel like something isn't right but I have no idea.

    The amps I'm getting don't seem right. I was getting pretty good gas mileage before this issue so I'd imagine the modules aren't too bad. I'm not sure if I missed something or where to go from here.