I have two 100 watt panels and two 125 amp batteries connected to a Renogy 30 amp PMW controller. When the sun is out and the batteries are charging, the battery full light blinks. If I do not use any of the stored power and my panels continue to produce watts, and the battery full light continues to blink, is there any change of the batteries overcharging to the point of being hazardous? I thought that the charger was to prevent the battery from overcharging. And, What if I don't use my van for a week or so and this occurs every day? Do I have to worry about fire? How will I know if the charger is not working correctly? And another question, if I am concerned about fire and disconnect the panels from the charger, am I creating a fire hazard?