Mithras has developed a solution to increase the autonomy of battery-powered devices. The technology will be able to introduce disruptive products in the market by meeting the local demand of energy for portable and wearable devices, both in health applications, health monitoring or treatment dispensers and in work and leisure applications. Not only will this technology increase the users convenience by achieving the fit-and-forget goal or provide continuous energy-supply for medical wearables without any interruption, moreover we aim to achieve this by using a completely clean source of energy.