What Does the Sticker on a Car Battery Mean?

December 5, 2023

A car battery is a vital piece of equipment that powers your engine and most of the auxiliary devices in your vehicle. However, your car battery doesn’t last forever and there will be a time when it needs to be replaced. If you’re not sure when that will be, checking the date of manufacture on your battery can help.

The majority of car batteries have a dated sticker on them that provides information about when they were made. The stickers typically display a number and a letter that indicates the month and year of the battery’s creation. The first number is usually a number from zero to nine that corresponds with the last digit of the year in which the battery was made, and the second character is a letter that ranges from A through L.

For example, a battery made in October 2022 would have a numeric code of K-1 and an alphanumeric code of A-2 (A is January, B is February, and so on). The dates aren’t always accurate, though, as the manufacturer must activate the batteries by adding acid after they are dry and sealed in the cases.

If you can’t read the date of your car battery or you don’t have receipts from when you bought it, you could try to get ahold of the dealership or store where it was purchased. They may be able to provide you with some information about its age and whether it might be close to breaking down.

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