Strap-Ya comes ahead of the new “Green” wave, and provides you with this ’safe energy’ solution for your mobile devices. Besides its bulky and somewhat unattractive design, the device has to charge between 6-10 hours to provide extra 25 minutes of extra life. Not a very good deal if you ask me.

What it does is to charge an extra battery and then use it to power your phone when it’s own battery runs out. That means you can charge the extra battery at any AC adapter for 3 hours, and voila, you don’t have to stand in the sun for 6 hours.