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BQ40Z60: Remaining Capacity and RSOC drop when charger is inserted

Part Number: BQ40Z60

I am using a BQ40Z60 with NCR18650B cells in 4S2P configuration. 

When the battery pack has been fully charged and left to self-discharge for about a day then upon charger insertion the RSOC drops from 100% to 99% (RemCapacity also drops). When the charger is removed, the RSOC jumps back to 100% (RemCapacity also jumps).

I have attached the log file of charger insertion and removal and data memory configuration. Is the IT Gauging mis-configured or what can be done to avoid this drop/jump?

BQ40Z60_1_10_2019.zip