I am nearly 79 and have little experience of this sort of installation having had 2 different installers who walked away from their attempts to get it working properly, (probably due to their lack of knowledge) leaving us in the lurch with a half working system which as laymen we have tried (not too successfully) to understand. We have a Multiplus 2 charging 2 paralleled 16 cell 10kWh Meritsun batteries which has 2 problems; First it charges OK for both our 3.6kWp solar and the grid but never discharges below 39% (using a Pace BMS or Victron setup) and this is obviously wasting battery capacity. Minimum SOC is set at 15%. The battery SOC values do not tie up with the Pace or Victron values very well. I heard there is Victron firmware available for 16cell batteries which might cure this problem, so how can this be obtained and loaded?
Second the 4kW charge mode is affecting clocks (including changing the time setting in our zappi charger) and causing them to run fast and triac controlled incandescent lighting to flicker badly presumably due to waveform distortion (there is a 200m heavy duty line to the grid connection transformer); can a capacitor bank be added to the line to cure this problem? If so what size should it be?
Thanks in anticipation.
