No Battery Power.... Please Help

[WolfWhistle]

I see you found the issue. After reading the string, I was about to say this. If you were plugged into shore power while testing, that could have been throwing you for a loop. For instance, if the disconnect switch was thrown or open (bad), you would have DC on both sides. Same for the main breaker. If no 12 volt on battery but yes on shore, leave shore disconnected while troubleshooting. This would be opposite if no charging power on shore. Happy travels!
WW

[Ford Idaho]

Originally Posted by Crop Duster

Well it seems to be working for now. We're on the road with it but before we left I was able to find some loose nuts on the wiring for the breakers on the tongue of the trailer directly after the batteries. I don't think that was the problem since I had power to the battery disconnect switch which is inside the trailer. But I'm keeping my fingers crossed that maybe it fixed itself.

If I may suggest, at your first opportunity take a piece of emery cloth and clean the connecters that you found loose.

They might be rusted or corroded a little.