battery dying

Once again T. S. Has given you and others with this problem a clear and easy way to check for battery drain problems.

Change out ignition switch.

After 3 batteries (everyone said the alternator was fine) and 3 weeks in an auto electric shop my backyard mechanic found the problem with a short in the original radio. New radio for over 3 months now and not a dead battery yet.

I did the battery draw test myself before I ever took it to anyone and I personally watch two others do the draw test. The draw test did not pick up the battery drain. Just by chance I was having the old radio removed to make room for a new one and it was over a weekend and to everyone's surprise the car started right up.

I did the draw test but the light never turned off,? What now? Do i start unplugging electrial parts under the hood? Injectors, fuel rail, etc.?

Lincoln town car 2008. While car parked, air condition running, thermostat needle start raises after 15 minutes parked. Temputer outside 95 degrees. When I close air condition is normal temperature.