A small device that is completely environmentally friendly. Fuelium’s batteries are paper-based and can be used in portable diagnostic devices like tests for pregnancy and glucose levels. Instead of throwing away each test after one use, they can be used over and over again as Fuelium’s design only generates the exact amount of energy needed for each use. This is done by using the urine or blood sample itself to create electricity through an electrochemical reaction. The paper then transports the fluids around the battery. Anything between one and six volts will suit this new type of battery.