About a week ago my wife stopped at a store. Afterwards car would not start, no clicking, no sound, no nothing. Putting pressure on terminal restored power to everything.
A couple of days later I removed the battery and thoroughly cleaned the cable ends and terminals. After this the car has had no problem for days.
Today my wife stops at a gas station and then the completely dead, no power situation again. Tapped on the negative terminal, and all back to normal.
Could there be a loose connection inside the battery? I tried to check the cable when I cleaned the terminals but didn't find a problem.
When there is a good connection battery and everything electrical works great. When there is a loose connections (somewhere) everything is completely dead.