UPDATE:  50% DOA
I had great hopes for these little devices. I bought them for air travel, but they did not survive the first trip. The USB corroded and then no charging would take place. I am still on the hunt for a replacement as these were the perfect size, just not robust enough for my use case (in a carry on bag with liquid in them).<br /><br />Update: I tried again as they are the perfect form factor for travel. I ordered two and one NEVER worked. The other one was fine so I kept them because I needed one for an upcoming overseas trip. It survived the trip and seems to still work, so maybe we can get it to continue to function for another couple of months. I am stuck with one bad one though which is quite disappointing.
Rating: 1 stars