There are plenty of hand-powered and solar powered chargers out there, so what's new about this one? The USB Wind Up Eco Charger doesn't have an internal battery like other chargers. Instead, it has a USB socket that can be used to directly charge any gadgets that are charged via a USB cable.
Although this means that gadgets are only charged whilst you are cranking away, it does mean that the Benex Eco Charger produces up to 5 times more energy compared to the hand-crank-charger-with-battery variation. Since all batteries degrade eventually, since this eco charger doesn't haven an internal battery, it'll last a really long time too!
Dan is a well-experienced author who is interested in exploring new things related to eco-friendly gadgets and technologies. He never lets any latest technology go off his sight. Being passionate about contributing to the clean environment, he writes articles on the latest renewable gadgets and other energy-saving technologies.