I live in a caravan, my victron inverter set up is in my shed so wires go from caravan, to outside, then to shed and back. When it rains, everything turns off and the inverter states low battery. I then turn on the geni, everything comes back on, the batteries say 62% charge, the low battery light goes off on the inverter and everything is back to normal. If I turn the geni off, everything goes fine until the batteries discharge to 62% and everything goes off again. It's still raining outside and everything stays on until battery drops to 62%. Last time this happened, I did a full charge and all was going okay until it rained again. I'm not very tech savvy so really need some advice, please.