Help on towing re: the electrics. electrical settings for towing. Apparently the settings have to be adjusted for towing a caravan - it appears I have been towing a caravan but my electrical settings were set up for a trailer only therefore The caravan battery was not being charged up. I presumed I had a problem with the battery so replaced it. then it was suggested I get a booster for the new battery. So way down the line and £600.00 worse off I now get told the settings were wrong. Has anyone else had similar problems?