BQ40Z80: The bq40z80 has the problem of disordered cell sampling. One of the two adjacent cells will rise and the other will fall synchronously.

The project uses BQ40z80 as a 6-cell fuel gauge. It is found that when smbus reads the voltage of a single cell, there will be fluctuations between two adjacent cells. For example, the voltage of cell 5 rises, the voltage of cell 6 drops, and occasionally it is found that the voltage of cell 4 also rises at the same time. To sum up, the magnitude of the rise and fall of the cell voltage is basically the same. At present, the problem seems to exist on the high-end cell side. Has this been found before? ? ?