DESS tried to balance, but failed to reach 100%

Our system is on 3.70~39 and the was scheduled to balance this past Sunday. Something weird happened though, where the system hovered around 98% and actually started feeding PV to grid around mid-day (13:00 and 14:00) rather than using PV to charge to 100%

The battery was still able to accept charge during this period, which I tested briefly by changing to “Keep batteries charged” for a few minutes.

When looking at the plan, it was scheduled to reach 100% but the plan oscillated between ~98% and 100% for a few hours.

Any ideas for what could have caused this? I’m forcing DESS to balance again tomorrow and will report back.



Hmm so on the second attempt, it did reach 100% but for some reason bought power from the grid during a peak hour (12:00), instead of continuing to charge from PV?