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Umbra Battery Module (8S1P/8S2P)

Umbra Lab Inc.
Umbra Battery Module (8S1P/8S2P)

Flight-proven lithium-ion battery module for small satellites, available in 8S1P (125 Wh) and 8S2P (250 Wh) configurations.

Technical specifications

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
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 1000g 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

Need the full ICD, test reports or a specific revision? Ask the supplier directly.

Source: umbra.space ↗

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