Company Info

EnerSys® is the largest industrial battery manufacturer in the world, operating manufacturing and assembly facilities worldwide for customers in over 100 countries. Worldwide and Americas headquarters are located in Reading, Pennsylvania, USA with regional headquarters in Zug, Switzerland and Singapore.

EnerSys is uniquely positioned to provide expertise in designing, building, installing and maintaining a comprehensive stored energy solution for industrial applications throughout the world. The company's products and services are focused on three primary markets:

  • Motive Power
  • Reserve Power
  • Aerospace & Defense
Motive Power applications include OEM and aftermarket applications in material handling, railway and mining markets. Reserve Power applications include telecommunications, uninterruptible power supply (UPS), electronics, security, portable power, switchgear/utility, medical, outdoor enclosures and sports and leisure. Products include batteries, chargers, accessories, enclosures and field service to provide a stored energy system.

EnerSys maintains its leadership position in these markets by providing customers with world-class products and services, achieved through total employee involvement, teamwork, and supplier partnerships. Exceeding our customers' expectations and supplying the highest quality products and services are paramount at EnerSys. This belief is the foundation that helps shape the company's vision for progress and allows our customers to achieve their goals.

EnerSys and its predecessor companies have been manufacturers of industrial batteries for over 100 years. The current company was formed in late 2000 to acquire from Yuasa Corporation (Japan) its reserve power and motive power battery businesses in North and South America.

In March 2002, we acquired the reserve power and motive power business of the Energy Storage Group of Invensys plc. In June 2005, we acquired the motive power battery business of FIAMM, S.p.A. (FIAMM), which complemented our then existing European motive power business. We also made smaller acquisitions of a producer of lithium power sources, primarily for aerospace & defense applications located in the USA; a lead-acid battery business in Switzerland; a manufacturing facility in China, producers of industrial batteries, located in Bulgaria, Argentina and Brazil and enclosures for equipment in the United States and Australia.

Today, our reserve power batteries are marketed and sold principally under the PowerSafe, DataSafe, Hawker, Genesis, Odyssey and Cyclon brands. Our motive power batteries are marketed and sold principally under the Hawker, IRONCLAD, General Battery, Fiamm Motive Power, Oldham, Express and NexSys brands. We also manufacture and sell related direct current—DC—power products including chargers, electronic power equipment and a wide variety of battery accessories. Our battery products span a broad range of sizes, configurations and electrical capabilities, enabling us to meet a wide variety of customer applications.