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.

Reading the Date Code

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.

42 replies
    • Alan
      Alan says:

      Mike Wallace, What a sick joke to determine the age of your batteries. Awful for the consumer. This is impossible to read easily, all done intentionally to confuse the consumer. Get a simple sticker. Consumers should demand better here.

      Reply
      • Mike Wallace
        Mike Wallace says:

        Hi Alan,

        Thank you for your feedback. We appreciate receiving input on ways we can improve our products. This form of coding has been a deep-cycle battery industry standard for many years and is not intended to confuse customers. We do not usually like to use stickers for important information like the date code, as they may become damaged, faded, or peel off over time. I have passed on your concerns as well as those of other customers to our production team. And we will continue looking for ways to clarify how this information is communicated to our customers. In the meantime, if you or any other customer has a question about their battery’s date code, our team is here to help.

        Best,
        -Mike Wallace, Director of Marketing

        Reply
      • Brian
        Brian says:

        Alan,
        Sticker is worse in the golf cart world. People will peel them off or replace them and someone buying a cart on the open market gets lied to. Not really that difficult at all. Actually pretty simple and several of the battery manufacturers stamp terminals this way.

        Reply
      • Mike Wallace
        Mike Wallace says:

        Hi Danny,

        C1X would indicate March 2021, as long as they are red batteries. If the case is blue, then they are from March 2011.

        Best,
        -Mike Wallace, Director of Marketing

        Reply
    • 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
  4. Wes
    Wes says:

    Hello. I have a mix of batteries in a used cart. They are all US8VGC. There is a date code that I’m unsure about on 2 of them.
    D7Y
    Can you confirm the date please?

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Wes,

      D7Y indicates that those batteries were manufactured in (D)April, (7)2017, at our (Y)Augusta, GA plant.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
  5. Mike Williams
    Mike Williams says:

    Hello
    Just bought a used cart was told batteries are new they are red us2200 6 volt. On the terminal its stamped with a D and 2 is that December of 2022 or 2012?

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Mike,

      D2 indicates your batteries were manufactured in April of 2022. The US2200 batteries we made in 2012 were white with red tops.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Greg,

      They are probably from March 2022. The easiest way to tell is through the labels. If your labels look like the ones currently on our website, it’s 2022. If they look different (blue or silver) then your batteries were manufactured in 2012.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
  6. Sherry Richardson
    Sherry Richardson says:

    Hi. I just purchased a used golf cart with 6, Black, US1800 deep cycle batteries. The Triangle code is F 1 X and etched in the battery is C 102D 4. Can you tell me the year of manufacture on these please?

    Reply
  7. Buddy Feis
    Buddy Feis says:

    My batteries only have a “4” stamped into the top of the negative post. No other numbers or letters… Does that mean 2014?

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Buddy,

      Take a look at the positive post. The “4” on the negative post indicates that it is a US1800. Look for two letters and a number on the positive post; this is the date code.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
  8. Brandon
    Brandon says:

    D-2-Z dates on my Us2000 batteries 2005 Ezgo txt took a ride to see how long my batteries would actually last did exactly 12.8 miles before i almost didn’t make it home is that normal i was told a fully charged 36v cart should do close to 30 miles fully charged what do you think and should i consider upgrading my batteries

    Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Brandon,

      Our Engineers recommend checking the charger before looking into upgrading batteries. The US2000 should provide more than 12.8 miles on a single charge, but that is dependent on other factors such as weight, terrain, and speed. If the charger is the original that came with the cart, then that may be the root cause.

      https://www.usbattery.com/deep-cycle-battery-user-manual/
      Section 6.4 – Charger Diagnosis
      – Step by step instructions to determine if your charger is working appropriately.

      Sections 8.1 -8.4
      – Step by step instructions for determining if your batteries are healthy or failing.

      Best,
      -Mike Wallace, Director of Marketing

      Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Robert,

      The easiest way to tell if they are from 2021 or 2011 is the color of the case/cover. If they look like the batteries currently on our website red/red they are from 2021. If they are different color, then depending on the battery model, they are from 2011.

      Best,
      -Mike Wallace

      Reply
    • Mike Wallace
      Mike Wallace says:

      Hi Kc,

      For 2022 you’ll see a letter A-L, the number 2, followed by an X, Y, or Z.

      Best,
      -Mike Wallace, Director of Marketing

      Reply

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