October 23, 2026 · Peter Szeles · 10 min read
Li-ion vs. Other Chemistries for Space: Why We Chose Li-ion
Before the first schematic, before the first weld, there’s one choice that shapes the whole battery pack: the chemistry.
Read more →ESA BIC Slovakia — Space Startup
Intelligent Battery Management Subsystem for CubeSats.
AstroBAT is an ESA BIC Slovakia startup developing high-reliability Li-ion battery pack subsystem with Intelligent BMS electronics for LEO missions. Project initiated early 2026 — ESA BIC incubation started mid-2026.
Core Project · ESA BIC Funded
Cubesat Battery Pack subsystem · ESA BIC Slovakia Project
We are developing radiation-tolerant Li-ion battery pack subsystem with intelligent BMS electronics for Low-Earth Orbit, or other mission-critical applications. DIOO (Deliver Integrated power On Orbit) is our proprietary battery pack project — currently in active development. Project initiated early 2026, ESA BIC incubation starting mid-2026. Supported by the European Space Agency Business Incubation Centre Slovakia (ESA BIC grant awarded April 2026).
Early prototyping
ESA BIC incubation
Concept Render — of the DIOO battery pack// product.details
Battery configuration2S2P
Battery capacity48 Wh
Battery nominalvoltage7.2 V
OrbitLEO
FundingESA BIC Slovakia + founder
PhaseEarly prototyping
statusIn Development
Why AstroBAT
Built for the realities of orbit
Radiation & Thermal
Designed for LEO radiation & thermal extremes
BMS electronics design for space applications, hardened against the South Atlantic Anomaly. Passive thermal design handles the 90-minute hot/cold cycle of LEO orbit.
Intelligence
Integrated BMS with fault detection & telemetry
Cell-level monitoring, active balancing, redundant protection circuits, and real-time telemetry output for spacecraft OBC integration.
Qualification Path
Qualification-ready architecture for CubeSats & smallsats
ESA-guided TRL roadmap. Developed under ESA BIC incubation with a structured path to vibration, thermal-vacuum, and radiation qualification.
Latest
Blog
September 17, 2026 · Peter Szeles · 1 min read
New: Explore our DIOO battery subsystem inside a 1U CubeSat in Interactive 3D
Our project page now includes a live, interactive 3D viewer so you can rotate and inspect the current hardware model straight from your browser.
Read more →September 7, 2026 · AstroBAT Team · 5 min read
Anatomy of a BMS: What's Inside a Satellite Battery Pack
Break down the architecture of a satellite BMS
Read more →