Energizer Holdings is one of the two largest consumer battery companies in the world alongside Duracell. Its batteries power remotes, smoke detectors, toys, key fobs, hearing aids and smart-home sensors, and its Armor All, STP and A/C Pro products sit in the car-care aisle. Based in Town and Country, Missouri, it employed about 6,050 people at September 30, 2025. The company is headquartered in St. Louis, Missouri.
Energizer makes money by manufacturing and sourcing consumer batteries, lighting products and car-care chemicals and selling them wholesale to retailers such as mass merchants, club stores, grocery, drug, hardware and auto-parts chains, plus e-commerce. Batteries & Lights is the larger segment and covers alkaline, lithium, rechargeable, coin, hearing-aid and specialty cells under Energizer, Eveready, Rayovac and Varta. Auto Care sells appearance, fragrance, performance and DIY air-conditioning recharge products under Armor All, STP, A/C Pro and other brands, with demand peaking in spring and summer. Profit depends on brand pricing power, retail shelf placement, promotional spending and manufacturing cost. Since FY2025 the company has also recorded U.S. Section 45X advanced manufacturing production credits for batteries made in its U.S. plants.