Strategic Elements’ moisture-fuelled battery powers Bluetooth sensor device The company’s graphene oxide battery ink cells could be used to power a range of evolving Internet of Things tech, especially in the wearables market, where there’s growing demand for smaller, more powerful batteries that can go the distance. The moisture-powered battery cells can be printed on surfaces like glass or plastic. Strategic Elements Ltd (ASX:SOR) has achieved a critical development milestone, using its moisture-powered battery to charge a Bluetooth sensor device. The tech-centric venture builder is working to create extremely small, thin and lightweight battery ink cells that can be printed on glass or plastic and self-charge as they detect humidity in the air or on a wearer’s skin.