I tried starting my 2014 JK and just clicked. After trying 3 or 4 times in a row it lost all power including dome light, locks, headlights, everything etc. All aftermarket switches and lights work and the batteries are 13v. I unhooked batteries for 15 min and when hooked back up all power came on. I tried starting it and then the same power failure. Any ideas?

 

Do you have a battery load tester? Most likely a bad battery. Did you try jump starting it? You should check battery cables are tight and look for a loose groung

 

Batteries are fully charged. Plenty of power