2010 Ford Edge electrical problem

[Mel70]

I have a 2010 ford edge sel awd. I'm having an issue where when I drive the electrical system will randomly cut off after all the dash lights flash. the engine is still running but I lose all power. The car will start with no problem every time I start it. When I check the battery with a multimeter while the car is on it is around 13.25-13.5 then when i press the gas, I'm at a solid 14.0 but I can't get a read on it when the power is off because it only happens while driving. If anyone can give me a thought on where to start or what the problem sounds like that would be awesome. I'm going to start with the serpentine belt while I take my alternator to be tested but I would think I would have trouble starting the car if it was that.

[garycrist]

You might look at the battery terminals replace as nessary. A bad chassis ground or the PLUS side

of the battery to the power distribution box would cause the problem you described. Those originate

at the battery in most cases. Your charging system appears to good, according to your readings.

 

As a side note, take your high RPM readings with ALL of the electrical load. A/C on ,fan on high,

bright lights, etc. or 1/2 volt or so above the resting voltage about 12.8 volts.

[edjunior]

I think garycrist has a better handle on this than me (electrical gremlins....yikes!).  But...how old is the battery?  I don't think that is the issue given your readings, but you never know.