The Chemistry Behind Sulfation: How 90% of Car Batteries Die Prematurely
Most car owners believe their battery suddenly died, but in reality, the failure began months earlier deep inside the plates, where chemical deposits quietly built up. This hidden enemy is called sulfation, and it remains the number one reason car batteries fail before their time. As an experienced Automotive Battery Manufacturer in India , DB Dixon has seen how sulfation destroys performance even in new vehicles. To understand why this happens, we must look at the chemistry behind it and how better manufacturing prevents it. Why Sulfation Starts Inside a Car Battery The Real Chemical Trigger Each lead-acid battery operates on the basic principle of converting energy back and forth between lead dioxide, sponge lead, and sulfuric acid. However, if the battery stays undercharged or sits for long periods, and above all, performs slow city driving, then lead sulfate crystals start to form on the plates. At first, they are soft and reversible. But with repeated undercharging, they hard...