HYmini is a handheld, universal charger/adapter device that harnesses renewable wind power / solar power and conventional wall plug power to recharge almost all your 5V digital gadgets.
HYmini is a hybrid mini green power station that fits in the palm of your hand.
In the field. I think this is another valuable device to have on touring trips for those techies that always have a cell phone or MP3 player. I have not been totally satisfied with the performance though. I had it on my handlebar for a 4 day tour and it did not have enough of a charge for my Zune or Blackberry at the end of the days. I did find that the USB connect is a bit unforgiving to some cables. The Zune cable did not connect fully until I used a generic cable. The port seems to be recessed a bit much for some USB cables to make a solid connection. Like the Solio its internal battery can be charged via AC when you have access to one. I've yet to purchase the additional solar add-on but I do like the idea of cascading up to 4 solar panels to assist in charging the internal battery.
7/10 I haven't used this in a while as it did not seem to charge very well by the wind. However, I'm going to give it another try as I have found some of these low end batteries and chargers cant retain their charge for very long. I'll put it on long bike trip and try to charge immediately after stopping. Theres no way to tell how much of a charge the battery has or is getting. Other reviews have been dissapointed with the wind charging portion but state the add-on solar panels work very well. When the Hymini was first released, the solar panels we around $25 each. Time has past and I don't think these sold very well as I just picked up 4 solar panels for 5 bucks each.