I know this will be a dumb question, but when is it best to use each setting on the battery switch? Should Battery 2 just be used say when I am anchored in the cove listening to the stereo? When is it best to have both batteries on? Just curious as I would like to install this on my new 2011 180 at some point because I also want to upgrade some of the audio components without killing the battery when listening on the water. Thanks!!
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