Mr. Energizer is more than just a battery: it represents our spirit of durability and performance. It always challenges everything around it with the same level of energy and performance that our products offer time and time again. Energizer has been at the forefront of the battery industry since it created the first consumer battery in 1896. ENERGIZER eliminated mercury and cadmium from normal use batteries (alkaline, zinc-carbon, and NiMH) almost 20 years ago. Constantly evolving, it achieves a leak-proof design that ensures the batteries will not suffer any leakage during storage, allowing consumers to enjoy them whenever they want.