How to Read Car Battery Date Codes?: How Old Is Car Battery?

Reading the car battery is essential in that it helps one know the lifespan of the car battery. Also, understanding the battery age helps in diagnosing car problems and how to fix them. Therefore, it is advisable to check the manufacturer’s manual guide concerning the manufacturer’s date and the lifespan of the car battery.

However, reading the car battery dates is a bit complex, especially if the car is old. The car battery dates differ from one car to another depending on the period manufactured. Some people may want to understand how to read the car battery codes. Luckily enough, the article below will enable you to know how to check the car battery coded and the original date of manufacture.

Steps on how to read the car battery manufacturing periodSteps on how to read the car battery manufacturing period

Many manufacturers try displaying the manufactured date on the cars and in the manual guide for easy access. The manufacturers have designed the car battery to enable the user to understand how to service and maintain the car battery to last longer than the stated period.

The following ways describe how to read the car battery manufacturing date.

  • Reading the manufacturer date stickers

Manufacturer date stickers provide detailed information concerning the date the car battery was manufactured. To read the date stickers, first, find the position of the date stickers. It is usually located on top of the battery and shows an “in service” date.

Also, the date stickers show the date on which the car battery was serviced, the expiry date, and the car battery warranty. Warranty allows the user to change the car battery if it is the default, and the expiry date shows the lifespan of the car battery. Finally, ensure a date sticker in the car battery when purchasing it that shows the manufacturing date.

  • Reading round stickers

Round sticker is another way of reading the car battery manufacturing period. The stickers are round and display either letters or letters such as 8 for 2008. Sometimes, the letters indicate months. For instance, letter C shows March and D for April.

Also, the letters in most car batteries indicate the year. For instance, nine means 2009, 1 for 2011, 2 for 2012, etc.

  • Stamped cryptic letters

Most manufacturers position their manufacturing date on the side of the car battery. The hot-stamped cryptic letters act as a code, and sadly, there is no standard arrangement, but the first information displays the date the car battery was manufactured. For instance, F3D201 indicates F for June and 3 for 2003.

The most preferred order for cryptic letters begins with month, then the year, or year then month. Therefore, it is advisable to ask the manufacturer how the cryptic letters are described.

  • Month and month(MM)/(DD)(YY)

Car batteries have manufacturing dates displayed on the side of the battery. For example, some batteries indicate 13/05/15-133. MM/DD/YY is the simplest way of reading the car battery date codes for both skilled and non-skilled. The month, year, and day format can be in two forms: DD/MM/YY or MM/DD/YY. Therefore, it is essential to understand the arrangement to avoid misinterpreting the manufacturing and expiry date.

Car battery date codes for cars displaying the manufacturing and expiry date

There are three car battery codes for common cars: interstate car battery code, Napa car battery code, AC Delco car battery code, and Deka car battery date code. The codes are as shown below;

1.  Interstate car battery codesHow To Read Car Battery Date Codes

Interstate battery codes exist in different forms, which require more understanding to avoid misinterpreting the date codes. The interstate car battery codes include;

  • Car battery code that has four or five-date codes. The date codes are in the form of SSMY or SSMD. The forms display the following information; the first and second codes show the company or the manufacturer. The third code says the month in which the car battery was manufactured, and they are usually in letters. The fourth code displays the month day, and the fifth code indicates the manufacturing year.
  • The battery top part with five characters where the first two codes show the year and month in which the car battery was manufactured.
  • The car battery left corner contains a five-character sticker where the first two characters indicate the year and month the car battery was manufactured.

2. Napa battery date codeNapa battery date code

Most Napa battery manufacturers stick a code sticker indicating the manufacturing year and month. For instance, 04/17 signifies the year 2017 and the month, April, and the codes are hot-stamped on the side or top of the car battery. The Napa car battery code exists in two different forms: one is a lengthy character code containing up to 17 characters. The first two characters are the essential ones that show the manufacturer month and year. E.g., 4BGHTYUR1234578, where B is for February.

Also, the Napa battery date code contains a four-character code, e.g., F90J where F is for June, nine is 2019, and 0J shows the line from which the battery was produced. So, finally, ensure you understand how to read the Napa battery codes.

3. AC Delco car battery date

AC Delco car battery date
source: https://www.winknews.com/

The codes exist in two different forms: four-character code and stamped code with some characters. The four-character code has an S and then four characters where the first two shows the month in which the battery was manufactured, the third code indicates the year, while the final show the area in which the battery was manufactured.

For instance, the car battery code SO17J, 01 is January, seven is 2017, and R is the company that manufactured the car battery. The code is usually stamped on the sticker positioned near or on the side of the battery.

Secondly, the stamped code, which contains approximately four-character codes, is usually stamped on top of the car battery near the corner. The first character shows how the battery was manufactured; the second digit indicates the month. For example, 8JR, where seven is 2017, J is October and R is the company where the car battery was manufactured.

4. Deka car battery date code

The battery has a code placed on the stickers or the battery side. The characters have an arrangement such as A8, meaning January 2018.

Frequently asked questions:

  • How to know an old car battery?

The car battery has an expiry date and may last longer if well maintained and serviced frequently. However, even though the car battery is essential, sometimes it may wear out and fail to function as usual or fail to store charge. The following factors help in showing the lifespan of the car battery.

  1.     The battery fails to charge as an indication it is dead, faulty, or the terminals are poorly connected to the charger. If the battery is dead, it may also be due to usage over four years.
  2.   The battery fails to respond to multimeter tests or records incorrect measurements.
  3.     Slower power transmission to the battery or the battery drains energy faster hence failing to store energy.

Can I charge my car battery while connected?

Yes, you may use the car battery while connected, especially when traveling long distances. But if you are traveling for a short time, it is advisable to unplug the car battery from the power supply source once fully charged.

Conclusion

Reading the car battery date is essential as it helps during the repair process. For example, if the car battery is too old, it is advisable to replace it rather than repair it. Also, the car battery date helps one know the lifespan of the car battery.

If you want to read the car battery date, it is simple as long as you follow the recommended steps. Luckily, the information above shows the best ways of reading the car battery dates. Ensure you know the car battery dates before purchasing.

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