These are rarer batteries that are often used in 4x4 and SUVs in countries with typically colder climates.
SLI batteries are designed to deliver a high burst of current to start the vehicle's engine. This is measured in cold cranking amps (CCA), indicating the battery's ability to start an engine in cold temperatures.
STARTER MOTOR
They are designed with lead plates and a sulfuric acid solution that is ignited by the spark when the engine is turned on.