Battery woes

My truck was having a hard time cranking this afternoon, and now all I get is the click, click, click of a dead battery, but the little eye in the battery is still shining green? I also heard a pretty loud click behind the glove box before it died...any suggestions would be very appreciated.
Thanks

Truck: 06 with the six cylinder It is too early for a dead battery isn't it?

 

I dont think 4+ years is too early, especially if you're in a cold climate like CO. Did it start up ok w/ a jump?

 

Its fine, I usually go through a battery ever 3 or 4 years.

 

my battery died last week, was the original 06 battery..jumped i that night, next morning wouldn't start again.

 

X2!
Sounds like a dead battery.

OP, take the battery in to get a load test at Autozone or a similar place to make sure.

 

It was just the battery, guess those little eyes that shine green if charged don't work. Thanks