Batteries and Power Electronics
Are space batteries and power-conditioning parts constrained?
Chapter summary
satellites store energy in lithium-ion batteries for eclipse and peak loads and regulate power through converters, regulators and distribution units.
Key takeaways
- 1
Battery assemblies are built by a few specialists, often from cells made abroad: an Aerospace Corporation presentation in 2025 noted that 18650-format and three other space cell formats are primarily foreign-sourced.
- 2
Power electronics share components and lead times with the space-grade switchgear identified as one of the slowest parts to obtain (Chapter 22).
- 3
Setcoin scores space lithium-ion cells 60, watch, with geographic exposure the main concern.
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