I have a 8s 280ah battery made of 8 cells with an overkill BMS. I'm seeing new behavior that I'm trying to understand and wondering if it is related to chemistry. Cell 7 (7th cell in the 8S config) of my 8 cells is reading at higher voltage (up to 3.65 and triggering cut-off) when charging, at normal voltage (similar to the other cells) when idle, and at much lower voltage than the other cells when discharging. I had not seen this behavior before. Has that cell suddenly gone bad on me or is this something temporary relating to the LiFePO4 chemistry? The cell has been treated exactly the same as the others.