Mature Technology Is Reliable and Safe

Since the beginning of the Space Age, EaglePicher silver zinc batteries have been trusted to power historical NASA launches, including Mercury, Gemini, Apollo and Skylab. Today, with more than 50 years of silver zinc battery production heritage, and more than 200 battery designs, we continue to produce reliable, complex systems for the missile, aerospace and maritime industries.

EaglePicher initiated development of automatic and remote-activated silver zinc batteries in the early 1950s. The early systems we developed were simple, single-section batteries with one voltage output. By maintaining flexible engineering, which ensures custom design, development, qualification, production and delivery, we are able to meet the requirements of each unique program.

Silver Zinc Advantages

Batteries made in our Yardney Division using silver zinc technology provide the following benefits:

  • Lightweight
    Our silver zinc cells weigh just one-third to one-fifth of nickel cadmium and lead acid cells, yet provide comparable energy output.
  • Compact
    Our silver zinc cells require one-half to one-fourth the space of other widely used rechargeable cells.
  • Powerful
    Silver zinc batteries can be discharged at tremendously high rates, which makes them ideal for missile, space launch and torpedo applications.
  • Stable Voltage
    Silver zinc batteries provide a stable operating voltage until nearly all the capacity is withdrawn.
  • Safe
    Our silver zinc cells have never caused or contributed to any serious accident.
  • Reliable
    Silver cells have been used on dozens of critical applications, including the Extravehicular Mobility Unit (EMU), Manned Maneuvering Unit (MMU), NR1 and DSRV submersibles.
  • Rugged
    Silver zinc batteries are widely used in very demanding environments such as those associated with missile and space launch vehicle applications.
  • Rechargeable
    Under ideal operating conditions, silver zinc cells and batteries provide hundreds of charge/discharge cycles.
  • Wide Selection of Sizes
    Our silver zinc batteries come in an almost endless variety of ampere-hour sizes and prismatic shapes.
  • Variety of Cell Types
    These include “LR” for maximum cycle and wet life, “HR” for greater high rate capability, and “PM” to optimize rate capability for uses that don’t require many cycles or a long activated life.
  • Packaging Adaptability
    The individual cell concept allows you to arrange series strings of cells in a silver zinc battery to provide any voltage desired.
  • Customized Cell Design
    We offer customized silver zinc cell pack designs for any cell size.

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