SLI Batteries (Starting, Lighting, Ignition)

SLI Batteries—Starting, Lighting, Ignition—are vehicle batteries designed to serve three key functions. They provide the initial power needed to start the engine (Starting). Once running, they supply electricity to lights, electronics, and accessories (Lighting). They also power the vehicle’s ignition system to ensure smooth engine operation (Ignition). These batteries are built to deliver high bursts of energy quickly and then re-charge as the engine runs. SLI batteries are essential for vehicle operation, typically lead-acid, and are designed for frequent, short-term high current demands rather than long-term power storage.