Umbra Battery Module (8S1P/8S2P)
Umbra Lab Inc.
Flight-proven lithium-ion battery module for small satellites, available in 8S1P (125 Wh) and 8S2P (250 Wh) configurations.
Typed specifications54 values
Discloses 7 of 12 fields engineers filter by in this category (category median 5).
- Energy
- 250 Wh datasheet p.1 125 Wh 8S1P nameplate energy capacity | 250 Wh 8S2P nameplate energy capacity
- Mass
- 900 g nom. · 8S1P configuration · datasheet p.2 1 600 g | 930 g 8S1P | 1 460 g 8S2P | 1 640 g nom. · 8S2P configuration
- Capacity
- 8 Ah datasheet p.1 4.25 Ah 8S1P nameplate energy capacity | 8.5 Ah 8S2P nameplate energy capacity
- Cell chemistry
- Lithium Ion datasheet p.1 Li-ion (unspecified) Lithium Ion
- Envelope (L×W×H)
- L: 7.13 in W: 4.04 in H: 2.50 in datasheet p.1 L: 7.13 in x W: 4.04 in x H: 1.43 in 8S1P max dimensions | L: 7.13 in x W: 4.04 in x H: 2.50 in 8S2P max dimensions
- Supply voltage
- 28 V nom. · Battery Voltage Nominal · datasheet p.1 22 V min · Battery Voltage Range | 31 V max · Battery Voltage Range | 22–31 V battery voltage range
- Power consumption
- 9.7 W max · maximum, heaters at maximum · datasheet p.13
- Operating temperature
- 10 °C min · Charge · datasheet p.1 -20 °C min · Discharge | 45 °C max · Charge | 60 °C max · Discharge | -20–60 °C operating temperature, discharge
- Radiation tolerance (TID)
- 30 krad datasheet p.1 30 krad total ionizing dose design capability
- Design lifetime
- 5 years min · datasheet p.1 5 years min · design life 5+ years
- Cell configuration
- 8S2P 16-cell configuration · datasheet p.1 8S1P 8-cell configuration | 8S2P
- Max continuous discharge current
- 15 A 8S1P maximum discharge rate · datasheet p.1 20 A 8S2P maximum discharge rate | 15 A max · 8S1P configuration | 20 A max · 8S2P configuration
- Nominal voltage
- 28 V nom. · battery voltage nominal · datasheet p.1
- Connector
- Combination D-Sub (2 power and 5 signal contacts) datasheet p.1
- Survival temperature
- -20 °C min · datasheet p.1 50 °C max | -20–50 °C survival temperature (higher temp possible during discharge)
- Random vibration
- 14.16 g RMS qualified to profile enveloping GEVS, Falcon 9, SpaceX Ridesh… · datasheet p.1
- Flight heritage
- Flown on Umbra 1 - 12 datasheet p.1
- Satellite class
- small_satellite_applications datasheet p.3
- Missions flown
- 12 datasheet p.2
- Quasi-static load
- 14.16 g datasheet p.2
- Shock qualification
- 1 000 g peak profile enveloping GEVS, Falcon 9, SpaceX Rideshare and … · datasheet p.1
- Number of cells
- 8 8S1P · datasheet p.1 16 8S2P
- Built-in heater
- yes onboard heater and temperature sensor · datasheet p.1
- Cell balancing
- other built-in cell balancing circuitry (type not stated) · datasheet p.1 other type not stated: Built-in cell balancing, thermal regulation
- Charge temperature range
- 10–45 °C operating temperature, charge · datasheet p.1
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier23 lines, in the manufacturer's own wording
- Battery voltage range
- 22 V to 31 V
- Battery voltage nominal
- 28 V
- Chemistry
- Lithium Ion
- Nameplate energy capacity (8S1P)
- 125 Wh (4.25 Ah)
- Nameplate energy capacity (8S2P)
- 250 Wh (8.5 Ah)
- Maximum discharge rate (8S1P)
- 15 A
- Maximum discharge rate (8S2P)
- 20 A
- Max dimensions (8S1P)
- L 7.13 in x W 4.04 in x H 1.43 in
- Max dimensions (8S2P)
- L 7.13 in x W 4.03 in x H 2.50 in
- Mass (8S1P)
- 0.93 kg
- Mass (8S2P)
- 1.46 kg
- Electrical interface
- Combination D-Sub (2 Power and 5 Signal Contacts)
- Intended space environment
- Multi-Orbit
- Flight heritage
- Flown on Umbra 1-12
- Design life
- 5+ Years
- Production
- Assembled and tested in the USA
- Random vibe
- Qualified to 14.16 Grms profile enveloping GEVS, Falcon 9, SpaceX Rideshare, and Electron levels
- Shock
- Qualified to 1000 g peak profile
- Operating temperature
- Charge: 10°C to 45°C; Discharge: -20°C to 60°C
- Survival temperature
- -20°C to 50°C
- Total ionizing dose
- Designed to withstand at least 30 krad TID
- Dot certification
- UN 38.3 (49 CFR §173.185)
- Debris mitigation
- Meets NASA-STD-8719.14C requirements
About
The Umbra Battery Module delivers reliable, high-energy-density power storage for demanding space missions. These flight-proven modules come in 8S1P (8-cell) and 8S2P (16-cell) configurations, featuring built-in cell balancing, integrated thermal regulation (onboard heater and temperature sensor), and a ruggedized design. Certified to UN 38.3 for safe transportation and compliant with NASA-STD-8719.14C debris mitigation requirements, they ensure safe, dependable operation. Flight heritage on Umbra 1-12 and compatibility with the complete Umbra Integrated System provide mission-ready confidence.
Documentation
- BATTERY-MODULE.pdf PDF source: umbra.space ↗
- Umbra-Battery-Module-8S1P-8S2P-User-Guide-5062D0001-REV-01.pdf PDF source: umbra.space ↗
Need the full ICD, test reports or a specific revision? Ask the supplier directly.