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Reserve Power Solutions from East Penn.

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Powerful Technologies, Powerful Solutions.

As one of the leading manufacturers of VRLA reserve power batteries in North America, East Penn is the ideal solution for the needs of highly technical applications including communications (5G/Wireline/Cable), data centers, switchgear, renewable energy, and other industries where uninterrupted power is essential. Our innovative solutions – based on over 70 years of experience – provide the industry’s most reliable backup power supply to critical business applications.

Unique Demands. Unique Solutions.

The energy landscape is evolving, and East Penn is well-positioned to evolve and grow with it – with world-class technologies and products that keep you completely powered.

  • World-class facilities certified to meet globally-recognized ISO 9001 and TS16949 quality standards
  • Cutting-edge R&D – innovation that supports smart grid technology and renewable energy operations
  • Exclusive Individual Plate Formation (IPF®) Technology – the only reserve power battery manufacturer in North America using this process
  • An exclusive offering of energy storage technologies – AGM, Gel, Deka Synergy®, and Deka UltraBattery®

Reserve Power Applications

We offer complete battery solutions for all of the reserve power applications found below. Each battery line is uniquely designed for the unique demands of each application.

Additional Information


East Penn has over 90 warehouses and distribution centers in North America to service your reserve power battery delivery needs. Our network of company-owned and operated facilities and premier sales and service staff delivers the industry’s leading logistical support, with a long history of superior order fill percentages and on-time delivery service. East Penn also has a professional team of dedicated sales representatives to service custom product requests and special accounts.


Our stationary power solutions deliver the industry’s most reliable backup power supply to critical business applications. Here are some of the technologies that make it possible.

Raw Materials
Our single-site manufacturing facility features four fully-equipped technical centers that test all incoming raw materials. Producing material on-site allows us to control quality and supply demands.

Grid Alloy and Casting
The positive grid contains a pure virgin lead (99.9%) and a tin alloy. The precision alloy blend, high conductivity design, and tested integrity ensures our grids deliver optimal performance and long life. Computer-controlled processes deliver the highest level of structural and alloy consistency throughout each cell, module, and battery system across all stationary battery lines.

Proprietary Formula Pasting & Curing
Paste is applied uniformly using our automatic computer-integrated pasting machines, delivering excellent material retention and conductivity. The density and formulation of the active material is carefully controlled to predetermined values, and an exclusive curing process paired with the unique crystallization structure of the company’s special active material optimizes the plate’s performance and extends battery life.

Exclusive Individual Plate Formation® Technology (IPF)
East Penn is the only reserve power battery manufacturer in North America to utilize this exclusive, quality-enhancing technology. Plates are individually and strategically formed in open tanks and visually inspected to meet our rigid IPF specifications. This optimizes power capacity, cell consistency, and long-term reliability from every plate, and ultimately each cell, in terms of amp-hour capacity and cycle life.

Two-Step Formation Process
Deka Unigy batteries go through an exclusive two-step formation/charging process. Step one is Individual Plate Formation using IPF Technology. Step two is placing the cell through a boost-charging phase. This process guarantees all Deka Unigy batteries ship at 100% of rated capacity – exceeding the industry standard.

The Valve and MICROCAT® Catalyst
Exclusive to all Deka Unigy batteries, East Penn makes a special valve that is manufactured on-site, and 100% tested for performance. Deka Unigy II batteries feature the exclusive Microcat® Catalyst built into the valve – helping to ensure a 20-year design life.


East Penn’s Reserve Power division offers multiple sub-brands within the Deka line. These brands help position our products to enhance consumer recognition and application distinction.