Hi Gang, we have just purchased a 2012 Evolution Allure caravan and I am still trying to work out how to have power when off grid. We have two solar panels, two batteries, a Solarforce 3o AMP Solar controller, a Power Inverter, a CTEK MXS 25 charger etc... When I turn the 240V mains off, I have no power at all. What am I missing?