Help! Another dead battery question

[Tallen234]

We went on vacation for about 9 days. When we came back, my wife's 2006 X5 3.5, which was in the garage in Phoenix at 112 degrees give or take, was dead. I jumped the X5 and got it started and drove it for about an hour. I pulled into the driveway and turned it off and then restarted it with no problem.

Should I look at getting the battery replaced or should the "recharge" work if it starts again in the morning?

Looking for some insight for a mechanical neophyte.

Thanks!

Edit: Forgot to include the fact that the battery is on a year old. I know we go through a lot of batteries in the desert, but one year is a bit too short....