On my RV, I have 2-325 watt 12-volt panels. A Renogy 40 amp solar controller. 800 AH lithium batteries. 2-300 AH & 1 200 AH. A 3000-watt Krieger inverter. I have the inverter connected to busbars & the batteries connected to the same bars. Very often, my system seems to drain very quickly, even...