What is a lead-acid battery

Lead acid battery (VRLA) is a battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. In the discharge state of a lead acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; The main component of the positive and negative electrodes under charging state is lead sulfate.
The nominal voltage of a single cell lead acid battery is 2.0V, capable of discharging to 1.5V, and charging to 2.4V; In applications, six single cell lead-acid batteries are often connected in series to form a nominal 12V lead-acid battery, as well as 24V, 36V, 48V, etc.
The Frenchman Prandt invented lead-acid batteries in 1859, and has experienced nearly 150 years of development. Lead-acid batteries have made significant progress in theoretical research, product types and varieties, and product electrical performance. Lead-acid batteries have played an indispensable and important role in various economic fields, including transportation, communications, electric power, military, and navigation and aviation. According to the differences in structure and use of lead-acid batteries, batteries are roughly divided into four categories: 1. Lead acid batteries for starting; 2. Lead acid battery for power; 3. Fixed valve regulated sealed lead acid battery; 4. Other categories include small valve regulated sealed lead acid batteries, mine lamp lead acid batteries, etc.
The nominal voltage of a single cell lead acid battery is 2.0V, capable of discharging to 1.5V, and charging to 2.4V. In applications, six single cell lead-acid batteries are often connected in series to form a nominal 12V lead-acid battery. There are also 24V, 36V, 48V, etc.