Update: I had the battery load tested; was assured that the battery is ok. So, I hauled the trailer home, have hooked it up to 30amp shore power in the yard. I decided to try a “lazy-man’s” approach before removing the panels to the electrical board and converter and learning how to test the converter (but thanks to enblethen for the link to the schematics if I later have to do this). Checking the starting voltage on the battery was above 13 volts, inside the trailer I heard the converter humming along at the beginning, so presumably it is charging or trying to charge. So, I have turned on every light in the trailer. At about 12 hours the voltage at the battery was 12.76, this am at 24 hours it’s 13.64 (and the lights are continuing to shine brightly)....am I correct. in concluding that the converter and system is intact? I am not hanging out in the trailer so don’t know if there has been any temporary dimming of the lights like I described in the original post. Maybe the reason for the original dimming which prompted this search will forever remain a mystery and hopefully not recur? If any readers think I should pursue this further I would welcome their advice since, after all, I am attempting to be proactive rather than have a problem on the upcoming trip. Thank you.
