Apologies if there is a complete answer already. There were parts in topics and im sure I originally saw something from @pwfarnell answering this but it eluded my searching this time!
Im trying to prioritise a 2x smart solar charge to 25.6v lifepo4 managed by cerbo S GX and with 712 battery monitor. They are set at the standard 28.4/27.2 absorption and float. Ive recently added a wind feed which for a number of complicated reasons is having to come back in through a blue smart charger (power measured through separate shunt but all showing on display. Im trying to ensure the solar (much bigger supply) is always first call until going off. I’m assuming I lower the absorption and float on the victron blue smart charger (done to 28.2/27.0) but this doesn’t seem to do anything and the AC load is always defaulting to the blue smart charger.
You have the idea but have done ot the wrong way round, you need to increase the voltages on the BlueSolar to be higher than the ac charger so if there is enough solar or wind, these can increase the voltage higher than the ac charger so the ac charger shuts down first.
ahh. thanks. I think I just found your original thread answer based on 12v system. Wasn’t sure if you were also suggesting changing other parameters at the same time.
Let me just check something. When you say increase the blue solar inverter voltage (wind feed), that is an AC charger. The other feeds are the smart solar chargers. Have I misunderstood?
I have probably got confused, the key answer is the one that needs priority should be set to the higher voltage. However, if the priority charger goes into float and the other charger is still in absorption then the non priority one may take over. Sorry for the confusion.
thanks that’s clear. I think I had done that but the priority solar feed was in float so I guess it drops to the blue solar in absorption and doesn’t drop out of that until the blue solar depletes the battery from the wind system which isn’t ideal. Would be nice to potentially auto block the wind from charge during the day so that it just tops up its battery before night swapping over to supply the larger bank. Unfortunately I have some gadgets on the wind inverter (DC to AC) (at the wind farm “sub station”) and they keep getting knocked off on depletion. Guess I could use a smart plug
