Where do you see that switching (idle, charging, discharging)?
On VRM, inside the battery box?
If yes, that it’s programmed to show idle for current = 0, discharging when current is negative and charging when the current is positive.
And at 100%, even if the CCL = 0, there is a small, continuous, variation of the battery current, once it hits the programmed CVL (not battery CVL), because:
- the system has that PowerAssist/PowerControl active all the time
- the inverter is drawing some power from the batteries
- there is some “fighting” between the desired voltage and the computed voltage on one of the DVCC scripts that causes the voltage to oscillate. Some time ago I’ve pointed for this small discrepancy, but…