We have a Victron Quattro inverter our boat, in the last 6 months we have only connected to shore power on three occasions, 2 of those in the summer when we had solar power, the only way we have been able to get shore power into the boat was to set the switch on the inverter to charger only, we are now on a winter mooring and something is not right, when we plug the power in it appears to be providing enough power to run the boat systems but not charge the batteries. Should the Victron detect shore power automatically?