Guys and gals I have 2 240 Watt canadian solar panels. One 2000 watt inverter. 2 100 amp hour batteries and one 90 amp hour battery. These are all wet lead acid. This is all set up in series. 12 volt system. The panels are connected to each other then go directly to a cheap mppt Chinese controller.

My question is I'm having to charge my batteries daily with my Gen. This system is hooked up to my 30 amp plug direct to my rv. I'm only running my freezer during the evening. I shut off everything accept my rv fridge which is 12 DC. What can I do to reduce my generator charging down to a minimum.

Because I'm still learning all help would be appreciated. Thanks