Automotive battery is designed for starting of Internal Combusion Engine (ICE) by emphasizing on cranking performance to start the engine, after that battery will perform electrical system balance or SLI function (Starting - Lighting - Ignition).
Recent technologies in vehicles causing varies demand of batteries. Some vehicles may required more reserve capacity than others while routine activity of owners may cause special demand for battery too. Thus, selecting the right battery will prolong usage life and reduce problem for battery usage significantly.