Solar Generator batteries losing battery charge
I have a 6KW solar generator. It has 4ea full river 250-6 batteries wired in series to make a 24 volt system. 2ea 270 watt mono crystal solar world solar panels, and a xantrex 3024 inverter/charger, morningstar 45 amp mppt charge controller. It has been sitting in the sun all summer without much use but loaded it back onto my truck and parked the truck under a car cover for a couple day's. Looked at it today and the batteries were down to 55 percent. It has been sitting at 100% all summer and I have not hooked anything to it. I thought it odd that the batteries would drain down that quickly without anything attached to the system. seems like maybe a parasitic draw somewhere? Do you think this is normal and what should I do to prevent the drain off from the batteries?