http://www.energizer.com/energitogo/index_flash.html

I was wondering if anybody here has tried the energizer energi to go charger? Supposedly it's suppost to re-charge a dead battery within 30 seconds, enough to make a call at least.

I was thinking this would be a great item is a backpack or small EDC bag, or in a car kit but was wondering if anybody has experience with item first before purchasing.