For over 20 years, Conley has been working together with East Penn Manufacturing. As the largest Value Added Reseller in North America for East Penn/Deka, Conley is positioned to offer its customers the best battery portfolio across all markets served by Conley. Whether you need a 12VDC Telecom or UPS battery, to a 48VDC or 120VDC, 20-year VRLA string, Conley can offer a solution to get the job done. In addition, Conley offers flooded battery products from multiple manufacturers.

East Penn Manufacturing

East Penn Manufacturing is the largest single site battery manufacturer in the world. Since 1946, East Penn has been manufacturing high quality Deka Batteries. The complete line of Deka stationary batteries by East Penn provides dependable, reliable power for a wide variety of applications including Telecommunications, Uninterruptible Power Supplies (UPS), Utility, Oil & Gas, Emergency Standby Applications and many others. Power Range: 30 to 2000 Amp Hours.


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, with regional headquarters in Europe and Asia.

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 and Defense


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