Dart Suddenly Shut Off & Won't Start

Battery terminals will be a click followed by nothing no dome light etc OR the dome light will slowly come back dim etc. The general traditional indicator is a "click" at the terminal or starter, it will be from under hood, and nothing no dash no radio no headlights. Sometimes the dome light comes back slowly but real dim. To check turn on headlights open hood wiggle terminals, headlights will come on..