Nothing is more frustrating than dealing with a dead phone when you actually need to use it. The Thermodynamic Cell Phone Charger can help. It generates energy from heat to get your phone working again. All you have to do is put some water in it, heat it on any wood fire, and connect your phone. The Thermodynamic Cell Phone Charger can charge phones, cameras, GPS units, and headlamps. The charging cable is heat resistant, which is expected. Nice to have during emergencies.