EnerSys engages in the provision of stored energy solutions for industrial applications. The company operates through the following segments: Energy Systems, Motive Power, and Specialty. The Energy Systems segment, which combine enclosures, power conversion, power distribution, and energy storage are used in the telecommunication, broadband and utility industries, uninterruptible power supplies, and other applications requiring stored energy solutions. The Motive Power segment engages in the batteries and chargers that are utilized in electric forklift trucks and other industrial electric powered vehicles. The Specialty segment, which are used in aerospace and defense applications, large over-the-road trucks, automotive, medical, and security systems applications. The company also provides battery chargers, power equipment, battery accessories, and outdoor equipment enclosure solutions; and aftermarket and customer support services. The company sells its batteries under the PowerSafe, DataSafe, Hawker, Genesis, Odyssey, Cyclon, IRONCLAD, General Battery, Fiamm Motive Power, Oldham, Express, and NexSys brands. The company was formerly known as Yuasa, Inc. and changed its name to EnerSys in January 2001. EnerSyswas incorporated in October 2000 and is headquartered in Reading, Pennsylvania.