Originally Posted by Cheaperrooter
1) When plugged in, does ANYTHNG run purely off battery power still or only electric converted to 12 volt. Wondering after reading if I am overcharging my batteries by not using them for anything.
Ok, to simple it down, everything on the 12 volt system, in other words everything that operates when you are not plugged in, runs off the batteries
When you plug in and the converter is at work, the batteries act as a buffer to help carry the load, the batteries on a modern converter will not be overcharged, the converter is regulated