Where is the battery factory date and how long is the warranty of the new car battery 4s shop?

Different brands of batteries have different warranty periods. The warranty period of 4s stores for new car batteries is mostly one year. The factory date of the battery is generally printed on the surface of the battery and is represented by a series of batch numbers. Different manufacturers have different coding methods. Some are simply marked with a series of numbers, such as 191211 or 20191211, indicating that they were produced on December 11, 2019; and some It is represented by a more complicated batch number, which is composed of a string of numbers and letters, such as 8KZ28A1. Its meaning is as follows:

1,The first oneIt is a number, generally one of 10 numbers from 0-9, representing the year of production of the battery. The 8 in the following pattern example indicates that the production year is 2018;

2,secondIt is a letter, generally one of the 12 letters of ABCDEFGHJKM, which represents the production month of the battery, and represents the production month of the battery from 1 to 12 months in alphabetical order. The K in the following pattern example means that the production month is October;

3.the thirdIs a letter, representing the manufacturer of the battery. "C" represents the production site in Chongqing; "Z" represents the production site in Zhejiang. The Z in the following pattern example indicates that the battery is made in Zhejiang;

4.Fourth and fifthIs a number, which represents the production date of the battery. The 28 in the above pattern example means that the production date is 28;

5.Sixth and seventhIt is a combination of letters and numbers, which represents the batch of the battery.

In summary, the production date of the battery is October 28, 2018, the place of production is Zhejiang, and the batch is the first batch.