A The lead-acid battery, also called lead battery, is a kind of battery, the electrode is mainly made of lead, and the electrolyte is a kind of battery of sulfuric acid solution. It is generally divided into two types: open-type battery and valve-regulated battery. The former needs regular acid injection and maintenance, while the latter is a maintenance-free battery. According to the battery model, it can be divided into small density, medium density, and large density. The commonly known battery mainly refers to the lead-acid battery.
