But remember, you can put in lots of batteries and thats good but you then have lots of batteries to charge. Everyone's use profile is different so more isn't always better because we have done it. When it comes to solar I understand that you need the solar matched to the battery to be able to drive it to the correct voltage. I have separated my batteries into 2 banks and charge one bank with my 55 amp house converter and the other bank with a Quick Charge 50 amp. With both those chargers starting up it draws 22 amps on my Honda eu3000si. I used a blue seas battery isolator switch to choose between bank one or bank two or off or both. I charge bank one from the house converter and ran the quick charger through another blue seas rotary selector switch so it can charge bank 2 or go over and finish up bank one because the house converter is slower. When the battery voltage rises and the amperage drops I can then run the generator on eco and get about 20 hours run time on 3.5 gallons of gas.
