In the Battery Cell, the difference between the monomers always exists, and take capacity as an example, difference will never disappear. Through the same capacity, relatively speaking, large capacity is always in the small current capacity, shallow charge and discharge light tends to slow decay, long service life, and is always in high current charge off. Tends to accelerate, shorten the life of capacity decay. The difference of performance parameters between them is increasing, forming positive feedback characteristics, premature failure of small capacity and shortened life of the 18650 Battery Pack.
