What is a car battery

The battery is an essential part of the automobile, which can be divided into traditional lead-acid battery and maintenance-free battery.
Because the battery uses lead-calcium alloy as grid frame, the amount of water decomposition generated during charging is low, and the amount of water evaporation is also low. In addition, the enclosure is sealed, and the amount of sulfuric acid gas released is also small. Compared with the traditional battery, it has the advantages of no need to add any liquid, long storage time for the wiring pile head, etc
The structure of automobile lead acid battery mainly consists of positive (negative) plate, separator, electrolyte, tank shell, connecting rod and pole pile.