Barrel principle of battery for notebook battery manufacturer

Barrel principle: the maximum capacity of the barrel depends on the shortest wooden piece rather than longest ones. This is its original meaning,

I believe many people already know that notebook battery pack are in same principle. The quality and discharge level of cells in laptop battery pack can't be fully same after those are made in battery pack. For example, for the stability of pack voltage, when capacity of one cell of battery pack decrease much after discharging, the battery management chip will in accordance with "barrel principle" to make charging protection according to worst cell capacity. After charging, the capacity of laptop battery pack will decrease .

Therefore, cells matching is very important producing process to make good latop battery for laptop battery manufacturer. If the parameters of cells in one pack are almost same. the laptop battery can give best performance. If parameter of one cell in the pack are different from other cells in the same ones. the battery performance will be effected much, which is same as barrel principle. The capacity of barrel is decided by the shortest wooden piece.