BU meta description needed...Invented by the French physician Gaston Planté in 1859, lead acid was the first rechargeable battery for commercial use. Despite its advanced age, the lead chemistry continues to be in wide use today. There are good reasons for its popularity; lead acid is dependable and inexpensive on a cost-per-watt base. There are few other batteries that deliver bulk power as cheaply as lead acid, and this makes the battery cost-effective for automobiles, golf cars ... Explore the lead acid battery: construction, working, diagram, reactions, types, maintenance,applications, charging, sizing & life tips. Learn what a lead acid battery is, its working principle, reactions, diagram, types, and real-life uses. Perfect for exams and practical understanding. Gel cell and absorbed glass mat batteries are common in these roles, collectively known as valve-regulated lead–acid (VRLA) batteries. When charged, the battery's chemical energy is stored in the potential difference between metallic lead at the negative side and lead dioxide on the positive side.