A patient recently asked me, “Why are you starting me on lithium? Isn't that what's in batteries? If I'm supposed to be getting my mood stabilized, isn't this going to make me like the Energizer® Bunny…?” I really couldn't blame him for asking such questions. Why are we using battery contents to flatten out mood episodes? Why is a deadly former salt-substitute now doled out in prescription bottles? With its many and varied uses medicinally and non-medicinally as well as the urban legends surrounding lithium and its side effects, it's no wonder there is a bit of mystery and maybe