[Daryles]

Look at your converter in the circuit breaker panel.
See if you have a green blinking light. If you do, you have a "Charge Wizard".
Press the blue button next to the green blinking light until the light is solid green (on continuously).
This puts the charge wizard in BOOST Mode. It puts out 14.4vdc. I suspect you are not getting a full charge on your batteries when you run the generator.
Also try reducing your load (use less electricity).
Only run the microwave, coffee maker and other high demand appliances when you run the generator. Put the fridge in Propane mode. Use the water heater in Propane mode.
Check your solar MPPT settings. Maybe raise your absorption voltage to 14.6 and float to 13.6 so you get a full charge.
Turn off all your circuit breakers except to the things you need to run. Many appliances draw a little current even when not in use.
We're in Banff Alberta Canada. Generator hours are 1.5 hours in the morning and 1.5 hours in the evening. We are getting by just fine. It is cold here at night. Went through 3 bottles of propane in 10 days. Propane refill stations are few and far between.