Am I able to purchase a car battery here and also have it placed in car ???

No installation.

Only purchase, you'd have to install it yourself.

You can purchase a battery at this Walmart but they do not install them.

Buy yes install no

I agree with Midas, go to an auto parts store like Pep Boys or a trusted auto repair center. I prefer Interstate Batteries. Car batteries are very easy to install.

Why would you want a battery here, spend a little more and get a quality one ..

Purchase yes not installed