So it sounds like you guys are saying its possible the AGMs died under 2 years because of being undercharged.
Yes the solar controller is cheap. GoPower 30amp Pwm. Max i see at the batteries is about 8amps. No temp compensation.
It is the wfco converter. Previous owner said they would run the genny practically 24/7 while camping. So there is a chance the batteries were never really discharged and hit with a big amp charge. I measured 14 or 17amps from the wfco. But with solar and genny power there is a chance the converter was mostly in float mode?
Plan was to invest in a better solar charge controller. Now im thinking a better converter would be the way to go. Since i only have a single 155w panel i would need much more if i wanted to consider my solar the main charge source.
Other option, like i posted before, is using my RC charger. Thing was like $300. Im trying to figure out if i can make it do a constant voltage equalization charge. If thats the case i can discharge the batts at home and then blast them with a strong charge. My RC charger does have a Pb setting and i can choose 6v. I think you guys told me i want 10% so around 20amps would be ideal?
(the trailer has AGM currently, but switching to 6v)