No power

Stopped by the grocery store. When I came out. Car would not start. No interior lights, nothing on the dash. No clicking of the battery. Someone jumped me off. Started right up after hooking up the jumper cables. Clock needed reset. Driving home seemed like the transmission was not shifting right. Got home turned on AC, radio and accessories. Did not do anything like dim lights or anything. Got home from work today cranks right up. Thanks, Ed