Electrical/charging issue HELP

Ok all that helps. Thanks. Keep an open mind here. "NEW and "GOOD" have different definitions. Remember that and test accordingly. It sounds from your description as if the alternator is working hard with some accessories turned on and dragging the engine RPM down. "MY" first suspect would be a bad battery causing the alternator to charge at a high amp rate. It is also one of the easiest things to check. The alternator and charging system. And of it is a faulty battery, that's a very simple fix. I go with the simple stuff first. Rule that out and go from there. Do you have access to a "good" charging system tester and more importantly someone who actually knows how to use it? If so, my first recommendation is to have the battery and charging system tested and NOT by who you bought the battery from.