The need to recharge portable electronic devices is constant. Sometimes you do not have access to places with specific chargers or power points. The key generator of energy is an alternative to solve this type of specific need. The keychain generator consists of a ring and a rotating cube, which spins freely as a result of body movement or rubbing with clothes. Inside the cube is a generator and a battery. The energy can be accessed through a mini-usb input, which is located on one side of the cube.