LEFT 2014 SORENTO SXL AT AIRPORT PARKING AND FLEW TO ANOTHER CITY FOR ONE WEEK. CAME BACK TO FIND VEHICLE WILL NOT START. BATTERY WAS DEAD. I SPRAINED MY BACK TRYING TO OPEN THE SUV TRUNK FROM INSIDE AS THERE WAS NO POWER AVAILABLE TO RELEASE THE TRUNK LOCK. FIVE (5) SIMILAR EVENTS HAVE HAPPENED TO ME, ONE OF THEM AT THE KIA DEALERSHIP AND THEY HAVE NOT BEEN ABLE TO FIND THE CAUSE OF THE PROBLEM. IN RESEARCHING THE WEB, IT SEEMS TO BE A COMMON PROBLEM THAT KIA HAS NOT RESOLVED AND MANY PEOPLE ARE AFFECTED WITH BATTERY DRAIN WITHIN 3 TO 5 DAYS OF LEAVING THE CAR IN THE GARAGE. *TR