jump to start..... every time!

so im having a problem with my scamp. everytime i shut off the car to start it again i need to charge the battery. when i turn the key it tries to crank and runs out of power completely killing the battery. this past winter i dumped the battery in the trunk and had no problems till now. oh and my battery is not even a year old yet. when this started to happened i cleaned up the ground to make sure it was getting good contact and my alternator is 100 amp and is less then six months old. im really stumped here anyone got any ideas?:help:

I'm no expert but here is my guess;
Voltage regulator?
Drop by an Advance or Auto Zone or the like and have them test you system to be sure.
Also check field connections from Alternator.
Good Luck
John.

I'm sure you'll get better help after everyone starts waking up this morning!:coffee2: