Car batteries are basically the electrical storage units, which convert chemical to electrical energy. The basics how car batteries work have not really changed much in decades. These batteries are lead-acid design. Electrolyte or acid reacts with lead plates in the battery to generate electricity.
It also takes more power to turn a huge engine than small ones, so the battery has to be rated and sized accordingly. These days, vehicles have more demanding electrical loads from many accessories, computers, and modules and would require batteries with enough power for systems to work properly. Overworking a car battery through installing something that is too small to meet the power demands of the vehicle can cause electrolyte reaction to prematurely fail. Read More