battery problem, AC Delco

[Dave92270]

Hi guys,

it seems that my battery suddenly died on me (in 2 days without any warning) - yesterday I noticed somewhat weak start but it started, and apparently recharged after short drive enough for repeat start on the way back from the store. Tonight I tried to start, and this time no chance, just buzzing... I checked out the battery, it is the original AC Delco that is supposed to be maintenance free? (no distilled water needed according to page 345 in the manual?). My vehicle was built late '06, is this common problem? I never had dead battery in 2 years in any vehicle I owned... maybe it is something else electrical possibly? Oh, my Onstar reports 100% everything perfect, haha.

I'll jump start (hopefully) the truck tomorrow and take it to the dealership to have a look - is the battery under warranty BTW?

Any thoughts? Thanks!