2011 4.6 sedan shutting down

[Ekilpatrick]

This issue started maybe two months ago. I was away from my vehicle for a month and then came back and didn’t have an issue for a few days now it’s back. It does it at random times when it does it, it does it two different ways. One where the car loses all power and the gauges freeze and the other where it just momentarily loses power but comes right back. This is the photo of the gauges freezing

 

[Gunkk]

These cars do not like unstable voltage.

So there's easy stuff like:
1. Check your battery terminal connections.
2. Replace the battery.

Then there's the hard stuff...

 

[Ekilpatrick]

These cars do not like unstable voltage.

So there's easy stuff like:
1. Check your battery terminal connections.
2. Replace the battery.

Then there's the hard stuff...

Well I had forgot to double check after you posted this went out driving it had gotten worse. Went to the trunk messed with the negative cable and all power came back. Got it home and tightend both cables got a few turns on each. Haven’t had a chance to drive it since last night so I am hoping that fixes it. Thanks for the advice