Ibeos offers energy storage solutions with a design life that exceeds other Smallsat and Cubesat products on the market today. Ibeos' products are designed with overvoltage, undervoltage, and overcurrent protections. The company's acceptance and qualification testing includes cell capacity matching, temperature testing, and life testing to ensure their products are built to the highest standards.

Ibeos' LEMS series, 28-Volt lithium-ion battery assemblies are radiation tolerant and fault tolerant. There are four unique configurations available with 275, 550, 825 and 1100-Watt-hour capacity, respectively. The aluminum and PEEK packaging is rigid, thermally conductive, and enables flexible mechanical and thermal spacecraft interfacing. Thermistors and polyimide thermofoil heaters allow for thermal control. Radiation tolerant battery interface electronics (BIE) provide a remove-before-flight inhibit in addition to over-voltage, over-current, and under-voltage protection.

The key features of this battery solution include:

  • Supports high power operation with 20A of discharge current per module; 10A charge current
  • Modular design enabling 250, 500, 750, or 1,000 Whr options
  • Radiation tolerant under/over-voltage and over-current protection
  • Integrated redundant heaters and thermistors

This product is available internationally, free of ITAR export controls, and is currently undergoing certification by NASA.

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Last updated: 2021-05-18

Modular 28V Battery (250, 500, 750, or 1,000 Watts)


  • CAD model(9.87 MB)
  • Datasheet(418.69 KB)
  • ICD(297.91 KB)
  • Option sheet
  • User manual


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