I have a maintenance /generator /electrical question. I keep my rv plugged in. When I come out to do the monthly generator excercise. I unlug it . When I attempt to run things inside the only thing that will work is some of the overhead lights. I have a small fan or a small heater that I want to turn on so that it also helps excercise the generator. Am I doing something wrong ?Why will other things not turn on?I Note if I switch the battery disconnect the lights turn off . So what am I doing wrong.
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