Am I just unlucky? Or is this a problem

[Naz24]

So, just replaced my battery from the OEM one with a duralast from autozone. Worked perfectly. I replaced it because my battery kept dying on me after letting the X sit for a couple days.

So fast forward to now (only a week since I installed the battery). My X has been sitting since Tuesday night, went out this morning to start her--NOTHING. Radio, and everything else was on, no problem...

I got a jump, everything was fine and it's been starting up fine. So I ran over to autozone to let them check my battery, alternator and starter with their diagnostic tool--all checked out 100%.

I did not leave any electronics on or plugged in while my car sat. Am I unlucky--Aka having this be a freak occurrence, or do u think there's a real problem?