What sort of locking mechanism will be used? I live in Canada and ride my bike all year round, in the rain, snow, sleet, below freezing temperatures, etc. Sometimes I have to leave my bike outside during the winter. I've had trouble opening my key operated lock before when it froze in the middle of the night... luckily I was able to get it open with rubbing alcohol and chain lube after about 20 minutes.

I'd be worried that this thing won't handle the weather, especially if its only battery operated (no key).