The industry standard used to be most manufacturers would guarantee it would start after three weeks of non-use but the insane engineers keep on adding more and more unnecessary, unreliable computers with memory circuits that continually drain the battery. A few years ago some GM models could have up to 47 computer modules to do things computers weren't needed for before. If your truck starts after sitting for one week, that would suggest there is no unusually high current draw in the battery and no problem to diagnose.
Be aware though that many manufacturers have designed some of their computers to lock up and need to be unlocked or reprogrammed by the dealer once the battery was disconnected or run dead. Volkswagen and GM are at the top of that list of customer-unfriendly engineering. If your vehicle is not having any problems after it was jump-started, you either don't have any of those computers to worry about or the battery wasn't totally dead yet.
Friday, September 23rd, 2011 AT 4:31 PM