As I said yesterday, I completed a tutorial from Johnathan Williamson creating a battery in blender, rendering in Lux Render.
I have not had any experience with Lux Render so I elected to use the Cycles render engine within Blender 2.63. Cycles does not have the default materials Lux Render has but I was able to create a semi-realistic copper material for the top. I think the results are acceptable 🙂