According to the information of La Voz de Galicia British scientists did some research, one of which as a charger used human urine.
All studies took place in Bristol under the auspices of the University of the West of England. During the experiments were planned development of bacterial fuel, scientists tried as a means of urine of a person. Putting in a special reactor liquid containing organic substances reaction occurs, resulting produce energy. Thus, the decomposition of urine emitted amount of energy was enough to charge a Samsung phone. Charging was enough only to send SMS, log on to the Internet and a few minutes to talk on the phone.
Scientists plan to continue experiments and improvement of technologies that can contribute to demand such chargers in rural areas of third world countries.