2007 keep commander

It's a Jeep, what did you expect? Take it to a local mechanic and have it properly diagnosed and stop throwing parts at it.

Find your grounds and clean them make sure you are getting the proper alternator its very common in trucks and suvs to have different ones for the same vehicle since some options require different power levels learn about automotive batteries just because you think you are buying a new batter doesn't mean you are distibuters have there own mark of when they sell them to the store where can can sit for up to a year

A battery sitting in a climate controlled room at a parts store for several months is still considered new.