Sunline T-2453 Dead Battery Issue/Question
I purchased a pre-owned 2453. (Background Info) The prior owner had not used a brake controller on her vehicle but the 8 point connector from trailer to her tow vehicle did provide electricity for brake lights, turn signal etc. I had a brake controller and 8 point receiver added to my truck bumper. Today, I actually got around to connecting all the parts. With the engine running and the electrical connections mad the trailer had no interior lights, brake lights or turn signals. I did not see a "glow" on the brake controller.
I am not knowledgeable of electrical technology. But, I am fairly sure that the RV battery is dead. So my question is: If the RV battery is dead/discharged, will that prevent the rest of the system from working? What if the RV is in fact attached to the tow vehicle with the engine operating? Also, is the a place to look for disconnects, switches etc.? About two months ago, I did have a battery charger on the battery and the interior lights did work. I was not checking brakes etc. as the RV was not "hooked up" to the tow vehicle. Any thoughts or experience will be appreciated.