After 3 years of winter commuting I finally broke down and replaced my Planet Bike 1-watt front light with one of those CREE XML T6 lights. Well, call me naive but to my surprise these things work using external battery packs.
How do you all that use these mount the battery packs? The way I'm setting it up for today is to just put the pack in my rear rack bag as the cable seems long enough and I'll just secure the cables with velcro straps.
Anyway, any pictures or other creative ideas?