Central offices and switching centers are the cornerstone of the communications network. Wireline, wireless and data depend on their reliability. And the foundation of that reliability is power and energy storage systems.

Central offices are designed to never fail, to work 24/7, even when the electrical grid is down. Without them, our ability to communicate is lost.

EnerSys® offers the complete power and energy storage ecosystem. High efficiency rectifiers convert utility electricity into DC for energizing network communications equipment. Intelligent distribution systems route the power to the right equipment and EnerSys batteries provide the reserve time to keep the office running during a power outage. Reliability, TCO, and intelligent control are the EnerSys standards. Our product solutions are complemented by a team of service professionals that engineer, furnish, and install, and maintain equipment.


We offer battery solutions for every size office, from remote CO’s to the largest urban switching centers. From traditional Flooded Lead Acid (FLA) and Valve Regulated Lead Acid (VRLA), to innovative Thin Plate Pure Lead (TPPL) and Lithium-ion (Li-ion), we have the right battery for the application.

While batteries and generators keep the office running during an emergency, the power system does the heavy lifting during normal operations. Our Alpha® brand of DC power systems fit any office, with solutions ranging from 400 to 10,000A. Our Cordex® system controller provides remote access, provisioning and alarm management for all our systems.

To deliver the DC power to the loads, our power distribution units and fuse panels come in various sizes to fit any office. They are intelligent, providing insight on load currents and voltages, temperatures and other system vitals. For offices with critical AC loads, our AMPS® product is an intelligent, versatile inverter that can meet the highest reliability standards. 



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As the world leader in stored energy solutions, EnerSys® provides integrated systems and services for many types of markets and industries.


PowerSafe® SBS Batteries

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PowerSafe® mSeries (DDm) Batteries

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PowerSafe® V-FT Batteries

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PowerSafe® DU Batteries

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EnerSys Services

From project initiation to end-of-life, our global suite of services supports your backup power needs while our global design, engineering and service specialists are ideally positioned to support your projects from conception and installation to on-site maintenance and after-sales service. 

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The exponential growth projected for 5G and IoT is driving processing closer to the edge, resulting in smaller offices that help take the load off larger, centralized facilities.

Jay Frankhouser, EnerSys Senior Director Product Marketing & Product Management/Energy Storage