1) My 2 x Multiplus II are behaving strangely. When there is solar yield (2 x MPPT 250/85) the charging is fine. However, when the yield comes off the Multiplus takes over and the battery voltage/current start fluctuating. It seems like there is load that pulls the voltage down below the dynamic current limiter.
2) SOC is not dropping below 90%
I have 48v, 1000ah AGMs
Storage mode off
Grid connected but do not want to feed in excess
Shut down on SOC 45% and low SOC restart 50%
Dynamic cutoff defaults (this is where I think the problem is)
Any help on fluctuating batts and SOC greatly appreciated