Since you have started the vehicle take a close look with a flashlight and find the wire you dropped. Happens frequently. If no wire has been dropped perhaps the alternator is bad?? Is this why you changed the battery because it was dead? If possible you may be able to jump your batteries together and let the generator keep up with the charge until after your trip. You may be able to prop the emergency start/ aux start button versus running a jumper cable.
H/R Endeavor 2008
Ford F150 toad >Full Timers
Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008