Last week it started having a sluggish start, made a clicking sound like the battery was dead then would start after a couple of attempts. I took the Car to where I purchased the battery from less then 8 months ago, they tested the battery, alternator, and starter saying it all looked good. Well yesterday It started doing it again after making a stop by walmart. But this time the battery light has come on and refuses to go back out. Even after a lot of driving and multiple times of turning it off and on. The car seems to be starting fine now but I've also noticed the 12v aux plugin located in the rear won't activate by the button located up front. Any ideas? For more information Its a 2007 dodge nitro RT, and yes I was using the 12v aux to power a tiny mobile TV for the kid in the back.