Is it possible to recharge a single bad module?

Discussion in 'The File Library' started by DougsPrius, May 5, 2017.

  1. DougsPrius

    DougsPrius New Member

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    Have an 06 prius and
    I wondered if it was possible to recharge one bad module without undoing everything? If so, how do I do that?

    Thanks!
     
  2. ericbecky

    ericbecky Hybrid Battery Hero

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    You can charge a module that is low.

    But if it is bad (for example, shorted out) then you should not bother trying to charge it. Remove it and put a good one in it's place.

    To charge a single module you do need to tear the can and battery pack down to where you have access to the individual modules. At this point you'll have the hybrid battery pack unbolted from the car.

    Remove the nuts on either end of the module. Attach your NiMh charger.

    Take time to correctly torque each nut on the HV battery and hv cable connections when you are done.
     
  3. DougsPrius

    DougsPrius New Member

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    Is there a voltage so low that it can be considered "shorted out" and not worth attempting to charge?
     
  4. DougsPrius

    DougsPrius New Member

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    So I only need to undo the bolts to that particular module to recharge, correct?



     
  5. DougsPrius

    DougsPrius New Member

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    Also, is there a voltage so low that it can be considered "shorted out" and not worth attempting to charge?





     
  6. ericbecky

    ericbecky Hybrid Battery Hero

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    If a module is the first to go high when charging, and the first to go low when discharging, then I would dump it.

    You can see this when using techstream or your OBDII + Torque app.

    Now if during charging and discharging it is consistently higher than the rest, or consistently lower than rest, it *may* be worth trying to save.

    Yes, you can charge just one module even though the buss bars are still attached.
    WARNING: HIGH VOLTAGE WILL BE PRESENT.
     
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