Hi all, I am new to touring. Just got my family a caravan, it's a 1994 Home Car by chateaur caravans, 4 berth. I'm just starting to go through it before we make our first trip. I have a question about charging the leisure battery. When the caravan is hooked up to the mains on site, will it be charging the battery on the 12v system? I can't find a charger, but on the 240v trip switch box, there is a label marked 'water heater, battery charger' . Any help appreciated. Thanks!