EnerSys makes stored-energy and power-system equipment for industrial, infrastructure and defense applications, from batteries and chargers to integrated systems that keep essential operations running. The company serves customers in more than 100 countries and has more than 100 years of battery-technology experience, with solutions used everywhere from data centers and communications networks to electric forklifts and spacecraft. EnerSys is also the largest supplier of batteries to the U.S. Department of Defense.
ISO 9000
certification
C&D TechnologiesSince 1906, C&D Technologies has manufactured industrial batteries and energy-storage systems that keep critical power available for data centers, telecommunications and infrastructure. The company operates seven manufacturing locations, sells more than 5.5 million batteries annually and serves over 120 countries, while supporting systems through installation, maintenance and recycling. Its lead-acid battery recycling program recovers more than 98% of battery components and uses up to 80% of reclaimed materials in new batteries.HORSHAM, PA
SaftFor more than a century, Saft has been known for developing high-tech industrial batteries for critical applications, from space systems to energy infrastructure. Now part of TotalEnergies, the company serves more than 3,000 customers across over 25 market sectors and operates 16 manufacturing sites with more than 4,500 people worldwide.COCKEYSVILLE, MD
Stored Energy Systems (SENS)Founded in 1971 by battery-industry veteran Herb Kaewert, Stored Energy Systems (SENS) designs and manufactures DC power and engine-starting systems for mission-critical infrastructure. The Colorado-based company now makes its equipment in U.S. facilities spanning more than 130,000 square feet, using worst-case design and factory testing for applications where downtime is not an option. SENS has maintained ISO 9001 certification since 1996 and says its systems support more than 75% of North American critical-power gensets above 500 kW.334519HATFIELD, PA
Bren-Tronics Defense LLCFounded by Vietnam-era veteran Leo A. Brenna in 1973, Bren-Tronics Defense LLC designs and manufactures rechargeable batteries, chargers, and portable power systems for military and industrial applications. The Commack, New York company pioneered the U.S. military’s first rechargeable batteries and has since expanded from radio power into vehicle, robotic, drone, and directed-energy systems. Its engineers take projects from design and rapid prototyping through testing and manufacturing, including custom power solutions for demanding missions.COMMACK, NY