Best Buy recycles batteries, and all other electronic stuff. In fact, there is a box in the front door of the local BBs with a slot for batteries and one for something else, I forget what. However, if you should have something unusual to be recycled (circuit boards, dead computers, disk drives, microwave ovens, stereos, whatever), just take it to the customer service center and they will gladly take it there (the "front door monitors" get real huffy if you start stuffing anything else4 than what's labelled in the boxes). Disclaimer - I have not tried to recycle a refrigerator or anything of similar size there, yet.
Cameron