U.S. Battery FLA Date Code

How Old Or New Are Your Deep-Cycle Batteries?

Used and refurbished battery-powered equipment are abundant and are often found at great prices. Although the vehicle may be in good working order, it’s important to determine how old the deep-cycle batteries are. In most cases, battery manufacturers stamp or etch a date code on the battery indicating the month, year, and location of manufacture.

U.S. Battery uses a stamped code on the terminals of its flooded lead-acid batteries. The top left letter stamped on the terminal correlates to the month it was manufactured (A-L refers to January to December). In this example, the letter “K” is the 11th month indicating the battery was manufactured in November. The number indicates the year 2014, and the bottom letter specifies the U.S. Battery plant where it was produced.

U.S. Battery Mfg. Co. Plant Codes

  • The letter “X” is for  Corona, California plant.
  • The letter “Y” is for  Augusta, Georgia plant.
  • The letter “Z” is the Evans, Georgia plant.

U.S. Battery Mfg. Co. AGM Date Code

On U.S. Battery AGM Batteries,  the date, month, and year on the battery case are etched into the top of the battery and are clearly visible. The date is in the format of DDMMYY or YYMMDD. In this example, September 15, 2014.

19 replies
    • Mike Wallace
      Mike Wallace says:

      Hi Jayson,

      Your batteries were manufactured in May 2011 at our Augusta, GA plant.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
        • Mike Wallace
          Mike Wallace says:

          Hi Rex,

          The date code will have a “1” stamped on the terminal, and the labels will look like the ones featured on our website. If there is a “1” and the labels are different from our website, it is most likely 2011.

          Best,
          -Mike Wallace, Director of Marketing

          Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Lee,

      C021N is an internal tracking code and is not the date code. The date code is composed of two letters, and a number in a triangle configuration stamped directly into the metal of the positive terminal. Letters X, Y, Z indicate the factory it was built at.
      U.S. Battery Mfg. Co. Plant Codes

        The letter “X” is for Corona, California plant.
        The letter “Y” is for Augusta, Georgia plant.
        The letter “Z” is the Evans, Georgia plant.

      Letters A-L indicate the month; A= January, B = February, etc. The Number signifies the last digit of the year; 9 = 2019, 0 = 2020, 1 = 2021, 2 = 2022.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
  1. Aaron Strassburger
    Aaron Strassburger says:

    What would the date be for the following: A262D2
    It is on a US250XC and does not seem to follow your code breakdown.
    Thanks,

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Aaron,

      A262D2 is an internal tracking code and is not the date code. The date code is composed of two letters, and a number in a triangle configuration stamped directly into the metal of the positive terminal. Letters X, Y, Z indicate the factory it was built at.
      U.S. Battery Mfg. Co. Plant Codes

      The letter “X” is for Corona, California plant.
      The letter “Y” is for Augusta, Georgia plant.
      The letter “Z” is the Evans, Georgia plant.

      Letters A-L indicate the month; A= January, B = February, etc. The Number signifies the last digit of the year; 9 = 2019, 0 = 2020, 1 = 2021, 2 = 2022.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
  2. William Suhr
    William Suhr says:

    My batteries have D2Y.
    We just bought cart and were told they were new batteries. Is that 4/2022? They were purchased in March. Please advise.
    Thanks

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi William,

      You are correct, D2Y is 4/2022. The date codes are about a month and a half ahead of the time they actually leave the facility. So, your batteries were actually built in late February or March.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
  3. James Chappine
    James Chappine says:

    Let me try this again,

    On the battery post is L1Y

    In a white circle on top of battery is M21

    Etched on Battery is A28504
    1120-E
    Is this battery still under warranty, the reason I ask is because my Battery post on this Battery the post melted and my cable can no longer be attached to battery.

    Can you explain all the codes/numbers, what year is the battery?

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi James,

      Thank you for choosing U.S. Battery products, and I am sorry that you are experiencing an issue with one of them.

      The date code is the L1Y stamp on the battery terminal. That code indicates that the battery was manufactured either in 12/2021 or 12/2011 in Augusta, GA. You can distinguish the year based on the battery label. If the label looks like the batteries displayed on our website currently, then it is from 2021. If the labels look different, your battery is most likely from 2011. The other codes are manufacturing codes, which we use for internal tracking during the production process.

      The best way to determine warranty coverage would be to contact the dealer where you purchased the battery.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Ho,

      31c202 is not the date code of your battery. The date code is composed of two letters, and a number in a triangle configuration stamped directly into the metal of the positive terminal. Letters X, Y, Z indicate the factory it was built at.

      U.S. Battery Mfg. Co. Plant Codes
      The letter “X” is for Corona, California plant.
      The letter “Y” is for Augusta, Georgia plant.
      The letter “Z” is the Evans, Georgia plant.

      Letters A-L indicate the month; A= January, B = February, etc. The Number signifies the last digit of the year; 9 = 2019, 0 = 2020, 1 = 2021, 2 = 2022.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Bill,

      If the battery case is red it is from August 2020, however, if the battery case is white it is from August 2010.

      Best,
      -Mike Wallace, Director of Marketing

      Reply

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