Thanks for the replies. I was hoping that there was a solvent /acid I could add to remove corrosion, etc. I tried using a slide hammer dent puller. I just pulled the end cap off the battery . I then chucked in the Lathe and drilled to 1.25". I am still trying to grip the outer battery case. It's really jamed in. I am afraid it is a lost cause.
I have no idea of the battery brand.
Randy