Energizer Holdings Inc (Energizer) is a manufacturing, marketing, and distribution of household and specialty batteries, auto care products, and portable lighting solutions. Energizer offers a diverse range of products, including household batteries such as primary, rechargeable, specialty, and hearing aid batteries using technologies like lithium, alkaline, carbon zinc, nickel metal hydride, zinc air, and silver oxide. The company operates in over 34 countries and serves industries related to consumer products, automotive care, and portable lighting. Products include primary, rechargeable, specialty, and hearing aid batteries; auto care products; and lighting products, including handheld, headlights, lanterns, and area lights. Energizer distributes its products through various retail channels, including mass merchandisers, electronics stores, and e-commerce platforms.

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Energizer is focused on a strong innovation pipeline with a robust lineup of new products designed to drive category growth. The company invests in innovation to reinforce its leadership position across the Batteries and Lights, and Auto Care segments. Energizer is executing a digital transformation program aimed at redefining processes, implementing new tools, and expanding data to enhance connectivity along the value chain and enable faster decision-making. The company has a long history of innovation, having developed or brought to market significant advancements such as the first dry-cell battery, the first flashlight, the first dry-cell alkaline battery, the first mercury-free alkaline battery, and the Energizer Ultimate Lithium, the world’s longest-lasting AA and AAA battery for high-tech devices. The company, through R&D, produces products that are protected through a combination of trademark, patent, and trade secret protection. The company owns thousands of Energizer, Rayovac, and Eveready trademarks globally, and licenses Varta trademarks. As of September 2025, the company had over 2,900 patents under the Energizer, Rayovac, Eveready, Energizer Bunny, and Mr. Energizer brands. It also had nearly 1,900 patents under the auto care business of the company. As of September 2025, the company operated a research facility in Westlake, Ohio, the US, which is an owned research facility for Batteries, Lights, and Auto Care. This unit is responsible for managing the company's R&D activities. In FY2025, the company spent US$32.6 million on R&D, which, as a percentage of revenue, stood at 1.1% and grew 3.2% YoY.