Exide is one of the world's largest producers, distributors and recyclers of lead-acid batteries. Lead-acid batteries are used in automobiles, golf carts, fork-lifts, electric cars and motorcycles. They are recycled by grinding them open, neutralizing the sulfuric acid, and separating the polymers from the lead and copper. In the US, 97 percent of the lead from car batteries is recycled - which is the highest recycling rate for any commodity. Most states require stores to take back old batteries.