Technical FAQs 4

How do you know if a battery has a manufacturing code?

The manufacturing code for batteries can typically be found on the battery itself or on its packaging. It is usually a combination of letters and numbers that indicate the date of production. By decoding this code, you can determine when the battery was manufactured. What does the battery expiration date code mean?

How do you know if a battery has a date code?

Date codes are found on all U.S. Battery products, indicating the month, year, and factory in which they were manufactured. For flooded lead acid batteries, the date code is stamped on the positive terminal using two letters and a number. The first letter refers to the month it was manufactured: A-L refers to January – December.

How do I know if a battery has expired?

For some batteries, the expiration date is explicitly stated as a specific number of years from the manufacture date. In this case, you can subtract the manufacture year from the current year to determine how many years are left before the battery expires.

What are battery date codes?

Battery date codes are alphanumeric stamps indicating manufacture or expiration dates, critical for tracking shelf life. Formats vary by brand—common systems include Julian dates (e.g., 22365 = 2022’s 365th day) or MM-YYYY.

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