The ultra-thin, cm scale SSB 250µAh, Stereax M250 contains no liquid or polymer components and has no free lithium, either in the charged or discharged state, making it moisture resistant and appropriate for medical applications. Its low self-discharge allows it to be trickle-charged by an energy harvesting source such as vibration or a PV panel. Its high peak current enables the transmission of data using protocols such as Bluetooth Low Energy. The combination of energy harvester, transmitter, sensor and the M250, is ideal for integration into small, “fit and forget” autonomous sensor devices with multiple applications. If volume allows, use several Stereax M250 can be stacked to increase energy for your requirements, and customised in shape and form. This includes medical devices, the Internet of things (IoT) and sensors for smart homes, smart cities and vehicles. The M250 is provided on a rigid substrate (650µm).