Hi there. I seem to be having trouble with my caravan battery in that it doesn't last very long---It's a 110ah in good condition. I have been told that caravan chargers are not very good so i would like to use an optimiser charger and do away with the caravan charger. If I connect a charger to the caravan battery and do not disconnect the caravan charger will it do any damage? The only way I can disconnect the caravan charger is by tripping the mains fuse to it. If I do that will my 12v system still work?All my lights etc are 12v. My Caravan is a 2008 Compas Corona 524. Any advise would be appreciated. Nigel