After some help guys,
Took delivery of a new lumen liberator last week, really pleased with the lamp unit but i've not had chance to use it yet as I've got battery mounting issues.
I ride a intense tracer with a 70mm stem so it's not really an option to mount on the bars or stem and the frame shape makes it difficult to find a suitable position to mount it in a frame bag. The only real position is in a bottle cage under the down tube right in the path of all the crap from the front wheel which I don't want to do.
Anyone got any suggestion on how I can mount the battery to my frame. I've already sent Troute an email ref so hopefully he may be able to help.