How I take the battery off my car?2008 Dodge Avenger

On a Dodge Avenger from 2008 the battery is behind the driver side wheel. You have to take the wheel off and then remove the plastic fender and the battery is right there just behind the front light. Here's how to replace it: 1. Block your tires, jack up the left side of your car and place a jack stand under your car. Luckily for me I was at home and had access to my stand. If out and about you may not have access to a stand, make sure your jack is in tip top shape.
2. Remove your tire. You possibly could do it without removing the tire, but you would be making your life so much more difficult. 3. Now you have accessed the wheel well and must remove the fender shield. There are two socket head bolts on the outside which are 9/32." Next remove seven push-in style retainers. You must pry them out carefully so that you can reuse them. 4. You can now for the first time see your battery, but you are not quite there yet. There are two retaining systems in place. First is a cross way bar which is removed using the 13MM Socket. Next you must remove the actual battery restraint. This is held on with another bolt that is also 13MM. 5. Remove the battery cables using the 10mm socket. The red cable comes of fairly easy, but the black cable is a bit of a stretch. If you have short arms you may need some help here. Also I could not get the socket onto the black cable, so I needed to use the open ended wrench. 6. Finally you battery is free. Pull it out carefully and place it aside. Now slide in your new battery. 7. Inspect your cables. Make sure that everything is in good shape and that you have a solid connection before you put everything back into place. 8. Replace everything in reverse order.

Disregard previous post...erroneous. You do NOT have to remove the LF wheel to remove/service the battery. Simply turn the steering all the way to the left to move the "toe" of the tire as far out as possible. Unsnap 13 plastic holdons and two toggle screws, battery will be on the sub-frame rail forward of the wheel well. 13mm bolts hold the crossbar, slide rearward enough to either clean the posts or check electrolyte. If you remove the cables, be VERY careful about shorts.

Whoever thought putting the battery there needs to be slapped really really hard.

I installed wing nuts to both terminal wires for easy disconnect by lifting the hood. It's still a squeeze to get down there, but much easier if I need a complete battery disconnect! It makes complete sense while working on these zombie cars! You'll thank me later.