4 x 200w panels wired 2s2p, into a victron 100/50 controller, going to 2 x 12v 200ah lifepo4 batteries in parallel.
Everything works great, but I am wondering about how I should be telling the controller to behave at 100% state of charge. I am running starlink/dc fan/dc fridge constantly during sunlight hours. Average consumption only 4-7amps @ 12v.
It seems that the controller doesn't ever actually leave absorption charge mode, even though the default setting is a fixed absorption time of 2 hours, and I think it is because of these constant loads?
Today I adjusted the absorption setting from "fixed" to "adaptive" mode, and then adjusted the tail current to just above my constant loads (Tail current set to 6amps). This then allowed the controller to enter into float, and then once float voltage was reached, the charger has resumed powering my constant loads at 13.5v (float), instead of 14.2v (absorb).
So I think this has achieved what I wanted for now. But now my question is, will my battery bank reach an actual 100% state of charge on a day where I have zero constant loads?
Should I just let it sit and cook at 14.2 for hours to power my constant loads and forget about it? What do you guys suggest for optimal battery health, and most efficient ways to power my constant loads?
Thanks.
Everything works great, but I am wondering about how I should be telling the controller to behave at 100% state of charge. I am running starlink/dc fan/dc fridge constantly during sunlight hours. Average consumption only 4-7amps @ 12v.
It seems that the controller doesn't ever actually leave absorption charge mode, even though the default setting is a fixed absorption time of 2 hours, and I think it is because of these constant loads?
Today I adjusted the absorption setting from "fixed" to "adaptive" mode, and then adjusted the tail current to just above my constant loads (Tail current set to 6amps). This then allowed the controller to enter into float, and then once float voltage was reached, the charger has resumed powering my constant loads at 13.5v (float), instead of 14.2v (absorb).
So I think this has achieved what I wanted for now. But now my question is, will my battery bank reach an actual 100% state of charge on a day where I have zero constant loads?
Should I just let it sit and cook at 14.2 for hours to power my constant loads and forget about it? What do you guys suggest for optimal battery health, and most efficient ways to power my constant loads?
Thanks.
