Power Source posted this a year and half ago.
"Leave it plugged in for a week, if the EVSE still shows charging after a week, you need to get a battery read out of the cell deviations. From this read out, you can tell if the deviations are too far out of balance. If so, then you are out of luck and have to drop the pack and swap in new modules. If the latter is the case, would suggest sending to Joe in Pennsylvania to fix the issue permanently. His shop balances the cells prior to installation in the car. Most shops just throw in mis-matched modules and tell the customer that the vehicle will eventually balance."
I would suggest you call Joe Ferrante at Evolution Autosports in PA 267-210-3986