If you have the misfortune of touching battery acid, there are a few things you need to do. First, flush the area with cold water for at least 15 minutes. This will help to dilute the acid and reduce the burning sensation. Next, apply a sterile dressing or clean cloth to the affected area to keep the acid from spreading. Dried battery acid is a very dangerous substance. It can cause severe burns to the skin and eyes, and if inhaled, can damage the lungs. If ingested, it can cause serious damage to the digestive system. If you get battery acid in your mouth, it will most likely cause burns. The severity of the burn will depend on how much battery acid was ingested and for how long it was in contact with your skin or mucous membranes. If you have. Have you ever wondered what battery acid is made of? Well, the answer may surprise you. Battery acid is actually a solution of water and sulfuric acid. This combination creates a sticky, corrosive. If you inhale battery acid dust, it can damage your lungs and cause difficulty breathing. In severe cases, it can lead to death. The acidic particles in the dust can irritate and burn your lungs, causing inflammation and scarring.