A central battery system in fire and safety acts as a hub that protects the entire building with precise safety measures. Central battery system-based emergency lighting is ideal for large to medium installations. For projects where central control and testing are desirable, a central battery system is a viable and cost-effective alternative to self-contained emergency lighting products. A Central Battery System has many advantages over a self-contained Emergency Lighting System. Firstly, because there are no batteries or supercapacitors in the luminaires themselves, there are fewer components to maintain and service. This is a difficult task and truly pays off, when the natural life span of the batteries is coming to an end. With a Central Battery System, the replacement of the batteries can be easily done in one location. But in Self-Contained Emergency and Exit Lights, where the batteries must be replaced one-by-one, in each luminaire which is a difficult task.