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Thread: CR-123/CR123A Date Code Stamp Guide

  1. #1
    Flashaholic* LilKevin715's Avatar
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    Post CR-123/CR123A Date Code Stamp Guide

    There are several threads here on CPF explaining on how to decipher the date code/stamp on primary CR-123 batteries. I thought it might be useful/handy to combine the information from those threads (mostly manufacture/brand specific) into one thread.


    Battery Station / Rayovac – Please see the picture below that has a table to determine the manufacture date. The expiration date is 10 years after the manufacture date.



    Duracell – The expiration date is printed on the label. The manufacture date is YYYY/MM or YYYY/Wk (someone please confirm?)
    Eagletac – No date printed.
    Energizer – The expiration date is printed on the label. The manufacture date is MM/YY or Wk/YY (someone please confirm?)
    Streamlight – The manufacture date is Wk/YY. The expiration date is 10 years after the manufacture date.
    Surefire / Panasonic – The expiration date is MM-YYYY.
    Titanium Innovations – No date printed.

    If any of the information above is incorrect, you want to add another brand to the list, etc. feel free to reply and I will update the post.
    My Mag Mods: SST-50 , XM-L

  2. #2
    Flashaholic Machete God's Avatar
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    Kuala Lumpur, MYS
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    Default Re: CR-123/CR123A Date Code Stamp Guide

    Just wanted to thank you for an informative and useful post.

  3. #3
    Flashaholic
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    Default Re: CR-123/CR123A Date Code Stamp Guide

    Sanyo cells are not immediately evident. I have a batch which are simply labelled NG.

    Quote Originally Posted by etc View Post
    According to Sanyo, it's year/Month. Mine show IB, which means 2004/Feb.

    So JJ would be: 2005/Oct.

    H 2003
    I 2004
    J 2005
    K 2006

    A Jan
    B Feb
    C March
    D April
    E May
    F June
    G July
    H Aug
    I Sept
    J Oct
    K Nov
    L Dec

    Extending that:

    L 2007
    M 2008
    N 2009
    O 2010
    P 2011
    Q 2012
    R 2013

    These are manufacture codes, so add ten years.

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