We have had our TT for one week. Went to the storage unit and found out I had no battery power. Traced the wires and found the ground post screw head had broken off. I drilled a new hole and put a new bolt and lock washer/nut to hold into place. Power restored.
Glad this happened close to home! Official maiden voyage scheduled for this next weekend!!
(Posted this in case someone else runs into this issue.)