While there are many ways to have your device juiced up while you’re on a camping trip, these Power Wellies from Orange look quite different, not to mention bulky. The idea behind this is to generate electricity from the heat in your feet, which more or less requires you to trod around for a good twelve hours to generate enough power to charge a mobile phone for an hour. Orange teamed up with GotWind in order to come up with this interesting eco-charger, though it’s quite hard to imagine anybody walking around the forest just to be able to charge their mobile phone for an hour. Still, maybe it can be improved upon, and if it only needed an hour’s walk…