96 SL500, I have been using my truck for the past week and have not started up the SL. Well this morning it would not start with a VERY dead battery. Is it normal for a battery to die in a week in very cold weather if not started? This battery was new a year ago and I have never had any problems with it.

Also is there any precautions I need to take jumping the battery? Any relays or sensors I might damage?

And how do I open the trunk with the battery dead? I can put the key in and turn the lock, but when I push in the trunk does not budge. It could be frozen though, I am assuming I should be able to open the trunk with the key even with no battery power.

Thanks much.

__________________
2007 Corvette Convertible Torch Red
1996 MBz SL500
2008 Harley Davidson Night Rod Special