killing the battery on 2003 Chevrolet Avalanche 2500

my 2003 avalanche keeps going dead every few days i have put in a new battery and i am still having the same problems any ideas on how to fix this

by in Great Falls, MT on April 18, 2010
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1 answer
ANSWER by , April 18, 2010
Could be the alternator. Best course is to go to a shop for a diagnosis.