The idea behind this human powered laptop recharger is that you could get juice in the outdoors or in areas where you have no AC plugs. It’s called the YoGen MaxT and it can produce 50-60 watts, which is enough to power a notebook.
Those who are on the wimpy side are covered as the device has internal AA batteries that keep the power flowing while you rest your leg. It’s great for say, camping and hiking, when you take your notebook with you. The whole thing folds up for portability, making it convenient.