It isn't hard to identify the date code of Sanyo 18650 battery. The logo "Sanyo", the model "18650...", and the battery date code such as"O49A" are stamped on the PVC of the battery. Please noticed that the codes are stamped, but not printed. Here below is the picture of stamped logo. Stamped … Continue reading →

It's a little hard to find out the date code of Sony 18650 battery, because it's hidden in a long string of codes. As shown on the pictures, there're 5 digits counting backwards on the second line. 1. The first digit = Year (A = 1992…, J = 2001, K = 2002, L = 2003, M = 2004, N = 2005, O = 2006, … Continue reading →

Here below is the official statement about INR18650-25R tube color changing from Samsung SDI. "This official letter from Samsung SDI is to assure you that We hereby guarantee INR18650-25R (Green Tube ) cells meet the same quality Standards , Cell characteristic and safety as INR18650-25R (Blue … Continue reading →

New version of Panasonic 18650 Battery has 2 bars - a narrow bar and a wide bar. But the old version only has one narrow bar on the PVC. If you see a Panasonic 18650 battery has dot matrix on its top, it must be very old and be manufactured before 2009. No matter new or old version, the same … Continue reading →

It's very easy to recognize the date code early Samsung 18650 batteries. There' re 3 lines on the battery body and the third line is the date code.The first digit = Year, the second digit = Month, and the third digit = Week. However, from the year of 2010, Samsung changed its code rules. … Continue reading →