QCauses of lead battery performance degradation
ALead sulfate crystal adsorption on the negative plate is the primary cause of lead battery aging. When a healthy battery is charged, lead sulfate crystals naturally return to sulfuric acid. However, as the battery ages, these crystals instead stick to the electrode plate. As a result, as the battery is used, lead sulfate accumulates on the negative plate, decreasing the reaction area of the plates, causing the specific gravity of sulfuric acid in lead battery electrolytes decreases, and resulting in a fatal side-effect on battery performance and lifespan.