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’ 1000-Watt-hour, 50-Volt lithium-ion battery module is a radiation tolerant, fault tolerant energy storage system. The aluminum and PEEK packaging is rigid, thermally conductive, and enables flexible mechanical and thermal spacecraft interfacing. Two thermistor and four polyimide thermofoil heater 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. Typical cell temperature rise with a 2C discharge rate is <15 deg C.

The key features of this battery include:

  • Supports high power operation with >48A sustained discharge, 24A sustained charge currents
  • 1 kWhr lithium-ion battery
  • Radiation tolerant under/over-voltage and over-current protection
  • External aluminum surfaces treated with MIL-DTL-5541 Type II, Class 3 chem film
  • Integrated redundant heaters and thermistors

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

Disclaimer: satsearch is not responsible for any mistakes on this page, although we do our best to ensure correctness. Please report any mistakes to us.

Last updated: 2023-07-28

50V / 1 kWhr Battery




lead time
2 to 5 mo
< 7.5 kg
84 mm
252 mm
280 mm
operating cell temperature
0 to 45 C
heater power @48V (each)
29 W
battery pack voltage
36 to 50.4 V
battery capacity
1000 Wh
maximum discharge rate
50 A
recommended charge rate
24 A
battery type
total ionizing dose
30 kRad (Si)


from our blog

Go to blog

Satellite Electrical Power Systems (EPS) on the global marketplace for space

An overview of satellite manufacturers building picosats, cubesats, and microsats

Satellite solar panels on the global marketplace for space