Adata D16750 power bank is tougher than the average juice pack
 

There are plenty of power banks on the market these days, as battery life for mobile devices still isn't quite a solved problem. However, many of them aren't built to survive the kinds of environments where many owners would seem most likely to take a power bank. Adata's D16750 Power Bank fills this niche by providing an enormous battery inside of a chassis that's designed to take a beating and keep on charging.

http://techreport.com/news/32274/ada...age-juice-pack