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Manufacturing date of New Hybrid battery

Discussion in 'Prius c Technical Discussion' started by Ohid, Dec 6, 2022.

  1. Ohid

    Ohid Member

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    How do you decode the manufacturing date of hybrid battery? Toyota has changed coding.

    Thanks
     

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  2. nancytheprius

    nancytheprius Active Member

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    i was able to look at the numbers on the individual modules
     
  3. TMR-JWAP

    TMR-JWAP Senior Member

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    Well, here's what I know as of this moment about the new coding. You have this sticker, plus you posted one earlier on another thread.

    0F2PA-52031M1B8L0000067
    0F2PA-52031M1C5C0000070

    As with most, we can eliminate the 52031 since that is merely the last 5 digits of the part Toyota number.
    With only these two full serial numbers, we can probably eliminate the 0F2PA from being involved in a date, but no 100% guarantee.
    We can also eliminate the 0000067 or 0000070 since those are just the sequential order of manufacture.

    That leaves us with M1B8L and M1C5C as potential digits corresponding to a date. Whether the M1 is part of it, I don't know. We probably need more serial numbers to help solve this puzzle, hopefully with a wide range of different numbers/letters in those positions. Then we can go through another process of elimination.

    For a quick WAG (but still just a guess, and likely not correct)
    If we say digit 3 of the above 5 digits=year and A=2020, B=2021, C=2022
    and we say digit 4 = month = 1-9, then 3 letters not yet determined (could be ABC or XYZ?)
    and we say digit 5 corresponds to day of month (but alphabet only covers 26, so 5 more 'symbols' needed)

    We would have B=2021, 8=August, L=12... so M1B8L = August 12, 2021
    and C=2022, 5=May, C=3 ....so M1C5C = May 3, 2022

    Now look at the serial number of a module. That date code should be just like the older modules and should be within about 2 months or closer to the assembly date for the case.
     
    #3 TMR-JWAP, Dec 6, 2022
    Last edited: Dec 6, 2022
    Ohid and vvillovv like this.
  4. Ohid

    Ohid Member

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    Thanks for your suggested decoding. The modules manufacturing date of 2nd one is 21 April 2022.
     

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  5. Ohid

    Ohid Member

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    The manufacturing date of modules of first one is 29 July 2021. I think your explanations are correct for both the cases.
     

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  6. Ohid

    Ohid Member

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    This Label indicate January 5, 2021. Am I right?
     

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  7. Ohid

    Ohid Member

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    Some more series I got:
    K1BC2
    M1BA5
    M1B9X
    M1B8L
    M1BCD
    M1BAW
    M1BA1
    M1C5C
     
  8. Sohaib Alarabi

    Sohaib Alarabi Junior Member

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    I never tried to read the date from the external cover sticker
    Because reading it from each individual module is still possible and they still use that code up to 2024 which is gonna be Z
    Now 2025 they might need to switch to numbers or a totally different coding method ... Lets keep his up 6 months from now when we start seeing modules made in 2025