How to find out the Mutlu battery release date
Decipher the inscription, consisting of six digits, as follows:
The first digit is the line number, but this information is not important for determining the expiration date.
The second digit indicates the year of manufacture.
The third and fourth - indicate the serial number of the month.
The fifth and sixth is the number when the battery was produced.
Thus, you can check any Mutlu battery, provided that the recording is clearly visible on the top cover of the product. For example, code 190101 indicates that the battery was manufactured in the first shift on January 1, 2019.
The markings from the above photos are deciphered as follows:
The red photo has a marking 270929 - Made on 2 lines on September 29 in 2017.
The gray battery has marking 260312 - Made on 2 lines on March 12, 2006.