Charging 2 Interstate Batteries through 45 amp converter

Running the generator 2-hour a day should replace 50 amp hours mas o menos in the 2 batteries, 30 amp hours each. This is a 30% discharged, state. Batteries do not like too much amperage (high voltage) when mostly charged 75% or greater. If you use less than 50 amp hours a day, you might want to consider charging every 2nd day. Of course this means interpreting what 50 amp hours means by your instrumentation. I am thinking of the fuel/cost/logistics issue.