I have set up my system with three 50/100 charge controllers all linked, they are all talking to each other fine and charging the batteries to 100%, and then go to float. They then stay in float until I either shut off the isolators to the panels and then turn them back on, or, if I don’t isolate them, until the sun comes back up.
Did you have a question about your system?
Charged voltage should be 14.2V since absorption is set to 14.4V.
Charge efficiency 100% might be a bit overconfident, no battery is perfect. For LFP it would be 99% as standard value.
I hope that youve also joined the shunt into the VE.smart network?
Thank you! I have reset the parameters on the BMV for the charge voltage. If the shunt is connected to the BMV, my system was installed before I owned the boat, then the three 100/50s and the BMV are on the same network. Looking up the smart shunt, I believe I have an older one. All set I will see how I go.
Thank you for your help
Ok the problem still exists, when I am plugged into shore power, the charger keeps the batteries at 100%. When on the MPPT controllers, they will charge to 100% the go to Float. I haven’t seen them in Absorption at all. After going to float, they never return to a state of charging on their own, as such I can be 20% down when I lose the sun. I can restart them by shutting off the isolators to the solar panels, or they will start by themselves in the morning, but by then I am 20-30% down.