Jessie, your first mistake was buying a Ford Motor Company product. LOL *kidding*

Rs_Fiend, you're making generalizations. The power windows in my '84 Mercedes 500SEL open and close no problem when the car is off and key not in the ignition, same goes for the sunroof and power seats....while the key must be in the ignition and in the on position for the same to happen in my fiancee's Lexus RX300. BUT in both cars all power bypasses all accessories during cranking of the engine. Cold crank has nothing to do with the number of accessories your car has. It's merely the number of amps a cold battery can provide and for what lenght of time. My cousin has a '69 Chevelle with an insane 502 c.i.d. big block and NO power accessories whatsoever. Yet he needs a monster battery to crank the beast over. While I admit that an air conditioner and power steering pump and things such as these do require some extra energy merely because of the friction of the belts that drive them, a large battery (not necessarily physically large but large in terms of the amperage provided) is primarily required to turn over a large engine.

Rudeboy, I agree...if alternator, rectifier and regulator are OK then there must be some sort of short draining the battery!