A car battery has a limited shelf life, which means you should check the production date before buying a new battery. Each manufacturer labels the battery differently, which makes it difficult to determine the year of manufacture.
The code for determining the date of manufacture is applied to the battery case. Some manufacturers place markings in different places on the battery. For example, on Centra batteries, the marking is located under the Danger sticker, and on Titan batteries, the code is printed on the top cover of the case. Sometimes the product code is indicated near the positive terminal, or on the back of the box.
Consider the markings applied. If the code looks like "II 12", then the battery was manufactured in February 2012. The first digit indicates the number of the month, the second indicates the year of manufacture. On batteries Inci, Medalist, Tyumen, Ultra Hugel, Aktekh, Amur, Zver, ZiD, Pilot, Titan, etc., the date is indicated in the usual form and does not require decoding.
If the battery label looks like 12B01E1, the first 5 characters will indicate the date. The first two digits contain information about the year of manufacture. The indicated letter gives information about the month of manufacture (A - January, B - February, C - March, etc.). The numbers after 3 characters show the day of production.
Varta and Bosch batteries have their own year of manufacture systems. The marking is H1V111302. The first letter indicates the country of manufacture (H - Germany, C - Czech Republic, S - Sweden, A - Austria, F - France, E - Spain). The first and second digits indicate the peculiarities of the shipment and the number of the conveyor on which the battery was assembled. The next digit is the year of issue, the last one in the year numbering. The third and fourth digits indicate the month. In the fifth and sixth positions, the day of the month is set, and the seventh digit is the shift number during which the battery was collected.