Recently I had the fun of replacing the Battery in a 2005 Dodge Stratus. At first I could not find the battery but after following some cables back to the battery, I located it.
To replace the battery you must first remove the Left Front tire. Then you have to remove the plastic around the front of the wheel well. Next you need to disconnect the ground, then the positive, then remove the brace that goes in front of the battery. All told it takes about 45 minutes to do.