Quote Originally Posted by wheezing donkey View Post
can be retro-fitted with Petzl's Accu battery pack, which contains extra current limiting circuitry in addition to what is already in the lamp
My Accu only lasted three months light was great with it, longest I run it for was about 7 1/2 hours on full beam

Its been sent back for repair should be back in two weeks.

The light doesn't seem as bright with the normal battery pack may need an upgrade