The demonstration of battery overcharge
The analysis of the RT-BMS data log supplied by customer: Cells #3 and #6 were overcharged, as the voltage reached above 4.0V. These cells are already fully charged. It is necesarry to balance these cells untill the voltage level of all the cells in the battery pack reaches the same level.
Suggestion: it is extremely important to balance all the cells to the same voltage level (4.0V) at the beginning of the usage of the battery pack.