I have an 08' Rockwood 8296SSFK. When I plug into an electrical outlet, there is a low volume high pitch whistling sound coming from the converter/fuse panel area. My neighbor stated that it was the converter attempting to charge the battery (which is bad), and if I don't replace the battery, the converter will burn up. He also that I need to keep a battery hooked up in my trailer or else the 12 volts/amps would burn up?? Has anyone ever heard of this? I am (newly) seasonal, so I always use electric, do I need the battery at all?
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