Originally Posted by wesley7523
I just started remodeling and i'm working on the wiring. I have all 12v
and 120v working. What wires at the front do I connect to my tow vehicle to charge battery? And is the 12v system suppose to charge while plugged into 120v? Thanks for any help and suggestions.
If your univolt is working properly, then when the trailer is plugged into city power, the battery will be charged.
To charge the battery from your tow vehicle, the blue wire in the connector, is the charge line, unless someone has modified the wiring.