Telecommunication systems are vital to the performance of France’s national railway, SNCF. The systems are installed in every train station throughout France and are crucial to train circulation, security and traveler information services. SNCF rely on Intesens’ backup battery monitoring solution as their IoT solution. The IDIAG Battery monitors battery health, its charge and discharge, and the room temperature. An alert is sent via Intesens’ web platform and via SMS and email when any fault is detected.