I'm looking for PART 3 as well. I would think about using the generator maybe for an hour or so to get the initial HIGH CHARGE AMPS demand from the 50% SOC batteries down to around 15 AMPS before shutting off the generator and letting the panels take over. I think this is going to be the trick that will save my day with my planned 360WATT solar panel setup. My battery initial demand when I hit them with 14.4VDC smart mode charge is around 52AMPS DC current from my on-board 60AMP smart mode Controller and this will drop down after an hour or so of charge. Then I can use my solar panels to finish the 90% charge without the generator before the high sun goes away... I am only going to expect around 18AMPS of usable DC current being produced from my three 120WATT Solar panels during high sun.
Being OLD SCHOOL I will not start my nightly run off the batteries unless they are at the 90% SOC state and when the batteries hit their approximately 50% SOC I will shut down operations until I re-charge.. Being planned out this should occur at 8AM the next morning when I can run my generator.
Roy Ken