The other day we stopped for lunch for about an hour on a long trip in a 2012 Honda Accord EX-L 4 cylinder. When we came back the battery had drained so much the car had to be jump started. The headlights were not on (but even if they were, 1 hour is not usually enough to drain batter that far).
The car is 3 months old and at 5k-miles.
Dealer has checked and cannot find any issue. It has been running fine ever since.
Could anyone know what might have happened?