PowerHouse Lithium 12V 105Ah Cranking Battery with Emergency Start - Dual PurposePowerHouse Lithium 12V 105Ah Deep Cycle Battery with Emergency Start Dual Purpose The primary role of a cranking battery is to start the engine. It provides the necessary power needed to turn the starter motor, which then cranks the engine. This initial jolt of energy is crucial, especially in colder climates where the engine oil thickens and requires more effort to start. With a 12V 105Ah deep cycle battery from PowerHouse Lithium, youll have the