Hello All.
Occasional reader; first time with a question.
We have MultiPlus 12/2000 and Smart BMV-712 controller installed in our sailboat, which has been connected to 240VAC/50amp shore power for the past 2 weeks. Our house batteries 2 new RELiON LiFePO4 batteries with 600 amp hours total capacity. We also have 4 Solbian solar panels linked in via their own Victron MPPT controllers
The problem is the batteries are not staying fully charged by shore power. During the nights, when solar isn’t making a contribution, our batteries drop down to 75-85% State of Charge, and they are discharging when I check the system in the morning before the solar panels kick in.
When I look at the MultiPlus first thing in the morning, the amber light is flashing indicating “The AC input voltage is switched through and the charger operated in float mode.” If I reset the MultiPlus by either turning it off for a few minutes or going from Inverter mode to Charger only then back to Inverter, the system starts charging and the amber light goes solid indicating “The AC voltage is switched through and the charger operates in bulk or absorption mode.” The batteries will then charge to 100%
If I do nothing, the solar will kick in when the sun gets high enough and the batteries will charge to 100%.
Please help me understand what’s going on here. Thank you.
@dlane1181