Hi,
I have a 4 cell pack design using the BQ20Z45. At the moment I am running tests using cells that have been stored for over 1 year and are no longer evenly matched in charge. Due to the cell mismatch, charge is terminated by a COV safety flag but relative capacity is reported as 100%, however the FC flag is not set.
I would very much like the FC flag to be set while an OCV QMAX update is made so the Gas Gauging Update Status will transition to 0x0E (currenty it is 0x06), thus enabling cell balancing during the next charge cycle.
Without cell balancing enabled the pack is still usable but I expect its relative capacity will increase as the cells balance out. The production volume and use scenario for this product make it likely that cells could be sitting on the shelf for 6 months or more before they are used in a pack.
Do you know why the FC flag is not being set?
Are there settings that I can modify to allow the flag to be set under these conditions?
Sincerely,
Doug
