Originally Posted by
Unknown Cyclist
With the end cap off, use a piece of wire to connect the end of the battery to the shiny edge of the case that you can see.
The torch will either come on or it won't.
If it lights up the problem is with the tailcap, switch or how it connects - if it doesn't light up the problem is most likely at the other end.

TY Unknown Cyclist...
I did what you suggested and the torch lit up. Now knowing the issue was in the tail I again began to move and stretch the spring and it worked.
I am though concerned that the future is not good for that tail. Do you know if I can order a replacement tail for that light?
That would also give me a good excuse to pick up a few extra batteries and that red tail light. Although, I would rather wait til is becomes a flashing tail light.
I appreciate you taking the time to help me on this issue.