I have a 2014 V6 Premium with Ford's Sync/Navigation system. Yesterday was out and later in day stopped to meet some friends for dinner. Came out after started car and the screen was lit but black/blank. No response pressing the power button, so no radio/navigation/music. Parked car and this morning my battery was dead. Any ideas?

 

First thing to do would be to test the battery and charging system.

 

Agreed, if its the original battery, I think these days you'll be lucky to get five years out of one, and they die in a hurry.