GTTH, I pondered on those buckles for a while, then realised that once the battery has been attached you can turn one sideways & loop it through the other and turn it back, possible failsafe?
I'm not sure it would work on all size tubes either, but it seem to work on a 'fat' ally turner & 'skinny' Ti tubes so far.
Now off to look at the battery water problem, mines been fine the one time I used it in heavy rain, but it is relatively protected being mounted between the toptube, headtube & downtube.
Cheers.
but it is posted now. So it looks like DX are swamped with orders for these things 
