Tired of your smartphone running out of juice? In the future, you might be able to charge it with your body heat.
Lin Gang, a sophomore at Nanjing University of Information Science & Technology, has invented a charger that transforms a person’s body heat into electricity.
Lin got the idea while attending a lecture about a Canadian girl who invented a body-heat charging flashlight.
According to Lin, this technology uses thermoelectric power generation, which works by using temperature differences—say, between the temperature outside on a cold day, and the heat generated by your body—to create an electric charge.
Test results show that the device can charge an iPhone within two hours.
Lin claims that the charger could be priced at $15 if it is mass produced. His invention has already caught the attention of three companies that want to work with Lin to develop the charger.