![]() ![]() The first number "2" for Samsung internal identification Date code with 4 numbers or numbers + letters, e.g. Therefore, code: 813 means the battery made in 2016, the third week of January.Ģ. The second number "1" = Month (Made in Korea, JAN=1 FEB=2. Date code with 3 numbers or numbers + letters, e.g. Since 2010, most of date code are changing to 4 numbers or numbers + letters.ġ. ![]() The last line shows the date code with 3 or 4 numbers or numbers + letters. The second line shows the brand name(SAMSUNG) and factory(SDI means produced in Korea or other branches, SDIEM means produced by Samsung Energy Malaysia). The first line shows the chemistry(ICR or INR), model number and some times with the place of origin, such as INR18650-35E, ICR18650-26F M(M means made in Malaysia). There are 3 lines of printing on the Samsung 18650 battery cells. How to identify Samsung 18650 battery manufacture date code?
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