Where is the production date located on a Fengfan battery?

[LaArthur]

Fengfan battery production date is composed of a series of Arabic numerals and English letters, located on the surface of the battery. The production date of a car battery plays a decisive role in checking the aging degree of the battery. The production date of the battery needs to be interpreted according to the manufacturer's coding method. For example, a Fengfan battery labeled as 4A0735331 indicates that '4' represents the year 2014, 'A' represents January, 'B' represents February, and so on, while '07' stands for the 7th day of the month. In summary, this battery was produced on January 7, 2014. As for the remaining '35331' identifier, it refers to the production unit code and team serial number. It is best to purchase batteries from official channels, as there are some small factories in the market that recycle old batteries. The production dates marked on such batteries are basically unreliable, with no good quality assurance, and lacking overvoltage and overcurrent protection, posing certain safety hazards during charging.