What are you charging the batteries with when the Honda is running? You need a good 40 amp battery charger or turn the Prosine down to 40 amps charging. Or I think you would set it for maximum 6 or 7 amp draw.
For emergency use I recommend an extended run fuel tang for the Honda.
http://www.wisesales.com/bergs-6-gal-system-for-honda-etq-generac-all-power.htmlI recommend 250 to 500 watts of solar and a good controller to minimize generator run time during an outage.
7 pin is fine for your existing panels but for a properly sized system you will need to wire direct on the battery.