I have a 2010 Buick Enclave - last week at lunch my car wouldn’t start. I got a jump, drove to AutoZone explained what happened, tested the battery, fully charged battery. I had my dad check all of the connectors on the battery - all were good. Today, went to start the car, nothing….. Jumped it, started right up. Read a lot of blogs of people with the same problem, no solution. Any ideas?