Researchers at the University of Birmingham School of Engineering have developed microengines, a breakthrough in nanotechnology that has the potential to eventually replace the conventional battery. This short video summarizes the characteristics and uses for this remarkable innovation. Microengines reportedly have "over 300 times more energy than an ordinary battery, and are much lighter and smaller." They have an extraordinary range of applications, such as mobile phones or powering microrobots for military reconnaissance operations. One of the researchers describes the microengines as being able to run off cigarette lighter fuel while being much more energy efficient than current batteries. Several other fascinating research projects are highlighted on the Research-TV Web site.