The working principle of lead-acid batteries is based on the chemical reaction of lead and lead oxide in sulfuric acid electrolyte. During the charging process, lead and lead oxide are respectively converted into lead sulfate, while releasing electrical energy. During the discharge process, lead sulfate is converted into lead and lead oxide, thereby consuming electrical energy. This process is reversible, so lead-acid batteries can be repeatedly charged and discharged, thereby achieving energy storage and release.

Lead acid batteries, an energy storage device widely used in various application scenarios, have been widely recognized by global users due to their reliable, stable, and cost-effective characteristics. Lead acid batteries play a crucial role in automotive starting systems, backup power sources, and even large-scale power systems.