I figure I should add my experiment with additional starting batteries. It went pretty well. Of course it now has me wanting to go alternatorless with deep cycle batteries to supplement power.
I added two additional batteries that I had laying around in my garage. They worked pretty well at keeping the voltage up in the morning when I have to run my headlights with the engine off. They are simply wired in parallel with the existing starting battery. Where as my voltage previously dropped into the low 11V range, they now only drop down to high 11V.
This is just
a temporary setup. As soon as I don't need headlights in the morning these batteries will be pulled out.
