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Battery Cell Compatability??

Discussion in 'Gen 2 Prius Technical Discussion' started by Dave Holbrook, Mar 9, 2017.

  1. Dave Holbrook

    Dave Holbrook Junior Member

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    I have a 2004 Prius and need a battery rebuild, I see where there are some battery cells being sold and listed as being for various years of gen 2 and gen 3 Prius. I have available a 2012 Prius C for a donor battery, (totaled, but still has the battery) So the question is are the cells or battery packs the same across the gen2 & gen 3 cars.?
     
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  2. Dave Holbrook

    Dave Holbrook Junior Member

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    I just found an informative thread on here for this topic.. Now my question would be how many cells are in a prius C battery pack?
     
  3. TMR-JWAP

    TMR-JWAP Senior Member

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    20 modules in a C. Can't make any promise about how well it will work mixing Gen 2 and Gen 3, but I suspect there wont be any problems. I used 2 "C" batteries to do a complete module swap on a 2005 that my son is driving. The other 12 that were left over went to ebay.
     
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  4. Dave Holbrook

    Dave Holbrook Junior Member

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    Thanks a lot for clarifying that, I looked everywhere to try to find out how many cells were in a Prius c. I definitely did not want to mix gen 2 and gen 3 cells, I was attempting to find out how many more I needed of the gen 3 cells to make a whole set of 28 for my gen 2 Prius. Another thread mentions not to mix 2 & 3 cells because there is a diffence in them, not in fitting but in their resistance or something. I couldn't check the c battery until I get it to take it apart, which I was holding off on just to do the math to see how this would work out.
     
  5. ozmatt

    ozmatt Active Member

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    Have done this before with no dramas, low capacity will catch you out before resistance. Battery computer reads resistance in pairs/blocks just trick it by putting one module of each generation per each block/pair so the overall resistance for each block is similar throughout the 14 blocks

    good luck
     
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