Capacity & Rails
- Battery capacity up to 70 Wh
- Regulated outputs: 3.3 V, 5 V, plus unregulated voltage
- Supply via PC/104 connector or Molex Picoblade-compatible payload connectors
Product Overview
The Galactic EPS is a flight-proven, high-efficiency power management system designed for modern CubeSat and small satellite missions. It combines intelligent power distribution, solar array management, and redundant architecture to support missions where reliability, efficiency, and long-term power availability are critical.
Developed by Quantum Galactics, the Galactic EPS enables satellite operators, research institutions, and NewSpace companies to deploy robust, high-performance power systems. We utilize open-source software and standardized interfaces, without vendor lock-in.
Why Galactic EPS?
- ✓ Safe end-of-life passivation on command (Zero Debris compliant)
- ✓ Intelligent battery management & health monitoring
- ✓ High-efficiency power conversion with MPPT
- ✓ PC/104 compliant, flight heritage
- ✓ Redundant power distribution
Typical Use Cases
- ✓ Earth observation & technology demonstration
- ✓ Long-duration missions requiring reliable power
- ✓ Educational and research CubeSats
- ✓ Missions with high power demands
- ✓ LEOP and long-term in-orbit operations
- ✓ Flexible power management
Performance Parameters
Solar Input & Protection
- Up to 8 parallel, redundant input strings for solar panels or strings
- Redundant circuits protected against over-/undervoltage, overload, and overheating
- MPPT (Maximum Power Point Tracking), voltage and current monitoring
Battery & Interface
- Li-Ion, 21700 cell type
- Temperature: −20°C to +65°C operational; −40°C to +80°C non-operational
- All vital parameters monitored via I²C; PC/104 compliant
This enables reliable power delivery for all subsystems and throughout the mission lifetime.
Reliability by Design
Reliability is not an add-on. It is embedded at every level: redundant power paths, fault detection and isolation, overvoltage and overcurrent protection, battery health monitoring, autonomous power management, and fault recovery. The Galactic EPS protects spacecraft power systems from launch to end-of-life.
Safety features are built in: redundant circuits with over-/undervoltage, overload, and overheating protection, plus monitoring of all vital parameters. These safeguards reduce the risk of failures and extend mission lifetime.
- ✓ Redundant power paths for critical systems
- ✓ Fault detection and isolation
- ✓ Overvoltage and overcurrent protection
- ✓ Autonomous power management
Passivation & Zero Debris
End-of-life behaviour is compatible with the UN Zero Debris Charter and space debris mitigation: battery systems in orbit must not become a source of debris (e.g. through explosion or fragmentation).
Thanks to our in-house developed, flight-proven system, we can ensure complete and safe discharge and long-term passivation of the battery system on command at end-of-life. This capability to safely passivate the power system is something many other manufacturers cannot offer.
Physical Properties
- ✓ PC/104 compatible CubeSat EPS
- ✓ Modular power management with redundancy
- ✓ Standard CubeSat rails & stacking
- ✓ Side connectors, PC/104 bus, EGSE interface
Flight Heritage
The Galactic EPS is flight-proven: successfully operated in orbit, designed to ECSS principles, and validated through AIT, LEOP & nominal operations.
Our design is continuously improved using in-orbit lessons learned and reducing integration risk to accelerate your mission timeline.
