i just re-read the first few pages of this thread.
at what voltage is your genny triggered to fire up when the batts need charging?
an early quote from volvo farmer:
I will say this. If you are not planning on being there for long periods of time, and you only have a generator to recharge batteries, you are going to be very very hard on those batteries. An unattended set of batteries would benefit very much from a solar panel or three keeping them topped off during extended absences.
have you added solar yet? if your batts are regularly hitting 48v with mininmal hardwear loads before the genny auto fires, your killing them. batteries are expensive, and most of us here spend quite a bit of energy and $ to keep them alive as long as possible.
i'm starting to wonder if your recent controls mishap was just the straw that broke the camels back. i really hope this isn't the case, but the more details you can give us the better we can offer potential solutions for the future. IE: what is the guage of the battery interconnects and main runs, what is the inverter LVD set at? at what voltage does the genny kick on? any long wire runs? how much does the temp of the batts fluctuate? how much if any water have you added to the batts, if ever? ect ect ect...
i have a similar off grid spot as you with similar batts. they still act new after ~6years. just 400w of solar in my system tops the batts off nearly every day while the system is unattended. ocassionally i have to run a genny for charging while the place is in use if it's too cloudy.
i've gone a step past cfl, and only run led. makes a huge difference! i run chinese junkers direct off 24v.
i'm so anal about keeping batts in good shape that i even have a solar panel mounted to the roof of my excavator! that was a spendy batt, and i want it to last as long as possible.
adam