I am looking for some thick walled heat shrink tubing for my battery pack and was wondering if you guys had some suggestions on what worked well for you. The battery pack is a Nightrider that I had to rewire and is 6 AA by 5 AA. It had some good stuff on there and I would like to find something similar. Unfortuantally there is nothing like it where I live and looking on the web does not give you a good idea what it is like. I have been leaning towards some PVC or Polyolefin. Website links would be great.