NHTSA Complaint #10575985 — 2006 CADILLAC STS

AFTER CAR HAD BEEN IMMOBILE FOR A WEEK, ATTEMPTED TO START AND ENGINE JUST CLICKED AND CAR WOULD NOT START. I PLACED THE BATTERY ON CHARGER WITHOUT DISCONNECTING FROM TERMINALS, CHARGE BATTERY FOR APPROXIMATELY 10 HOURS. TRIED TO START VEHICLE AGAIN THE NEXT DAY. IT STARTED AND I DROVE DIRECTLY TO AN AUTO PARTS STORE (AUTO ZONE) AND HAD THEM TEST MY BATTERY AND ALTERNATOR MY SYSTEM TESTED GOOD, SO I DROVE FOR A COUPLE MORE DAYS, THIS TIME I KEPT A CLOSE WATCH ON THE BATTERY VOLTS AND THEY KEPT FLUCTUATING UP AN DOWN. I PARKED THE CAR FOR ANOTHER COUPLE OF DAYS AND THE PROBLEM CAME BACK AGAIN. SO I CHARGED THE BATTERY AGAIN AND THEN TOOK IT TO A GM DEALERSHIP AND REQUESTED THEY TROUBLESHOOT IT. THEY CHARGED ME 45.00 AND TOLD ME EVERYTHING WAS GOOD. NOW I HAVE THE CAR AT HOME AGAIN WITH A DEAD BATTERY.I NEED TO FIND A SOLUTION TO THIS UN SAFE PROBLEM. THE CAR CAN SHUT OFF AT ANYTIME AND I WON'T E ABLE TO RESTART W/O A JUMP..HAS THERE BEEN OTHER COMPLAINTS SIMILAR TO MINE ? HELP HELP! *TR