A recent overheating incident in the facility’s VRLA battery charging area forced a temporary shutdown and revealed a serious gap in how heat was being monitored. There was no fire, but the event showed that basic sensors were not enough to detect early temperature changes before they became a threat. Because VRLA batteries can build heat internally long before smoke or alarms are triggered, the team realized they needed a reliable way to monitor the entire space in real time, especially during unattended hours.