Originally Posted by
stdlrf11
My solution to that was to put the battery inside an old water bottle, and run the cable out the spout. I could remove the light from the handlebar, and throw the whole package in my backpack in seconds. It was extremely waterproof, quick and convenient. The downside is you lose space for a water bottle.

I take it this helped with the lack of it being waterproof?
Wouldn't help with the theft issue, I actually had a water bottle stolen yesterday! All three of my water bottle cages are spoken for too! One for the Airzoundz vessel, one for a coffee mug, and the third actually for water!