Finally buying a strong inverter. How many batteries to buy?

If there are other items that you want to power with the generator like hair dryer, toaster, micro etc some people will try to do everything on the generator during the morning and then possibly run it again in the evening. During generator time an upgraded converter can be putting the big amps back in the battery. When the genny time is over and the sun is higher in the sky the solar can do it's work.