What is the normal background battery drain when a Lexus (eg. 2006 GS-300) is not being used (parked, doors locked, etc.)?
I am having trouble with my battery being flat (or almost flat) after sitting for a day or two -- not enough juice to recognize the electronic key and start the car. Car and battery are only 2-1/2 years old, so I doubt that the battery is that bad.
Also, voltage is 14 when the engine is running, so the alternator seems OK.
Any ideas as to what might be causing an abnormal drain when parked?