I have the same battery set up as you, with no LED lights I camp in the northeast shade of the forest also so solar would be very impractical. If you were a former tent camper and like to camp rather than stay inside and watch tv, or other electronic devices, you basically use lights, refer and water pump for you electrical draws. My batteries last 7 days without any generator usage and they are at 50%soc. With your set up 3-4 days of dry camping you would be fine. After 7 days in one spot I'm ready to move on and explore another area I am out of water and my wife needs to do laundry. Full timers out west like their solar systems. When I was out at Quartzite Az 3 years ago some folks were there all winter with solar systems but ran into town to do laundry and get water and dump there tanks. After a week I saw enough and was ready to move on.
