Products > Power Systems > EXA BA08 High Energy Density Battery Array

BA08 High Energy Density Battery Array with On-Board Charging System

At a thickness of 23mm millimeters, the EXA BA08 High Energy Density Battery Array is a power store/delivery device designed to provide the highest energy capacity and redundancy at 88Whr per bank. All BA08 modules have integrated quad chargers at 2C or 4C and integrated Isolated Power Core for custom serialization or parallelization. The embedded PowerFlex technology enables the user to discharge the battery array with a much higher power capacity for longer times to accommodate power peaks in the payloads without having to invest more.

BA08 enables your system to perform longer and better and pack more power than a similar sized satellite, the double-sided arrays are user-configurable to output 3.7V or 7.4V and can be serialized for much higher voltages. BA08, as all the batteries in this family, has the unique capability to charge and discharge simultaneously, giving you a longer mission time and extending the life of the battery.

FEATURES

23 mm thick with dual battery cells
Very high energy density cells can power from 1U to 27U missions
Unique containment technology prevents swelling of the cells in a vacuum
The double-sided arrays can be used as serial or parallel (3.7V or 7.4V) user configurable
Multiple BA08 modules can be serialized or parallelized due to the Isolated Power Core (IPC)
Capability to charge and discharge at the same time (simultaneously)
Multiple redundant cells ensure mission survivability
Embedded redundant thermal sensors
Embedded redundant active heaters self-powered, optronically activated (5V-TTL)
Module of choice for Micro satellite COLOSSUS architectures assembly
Designed for LEO missions and requirements
Stand-alone charge port available
High discharge capable for deep cycle payloads
Flight heritage positive TRL9 since 2013
Tested and qualified for more than 10 years
Manufactured with space grade materials according to space standards and custom mission design
Functional, performance, thermal bake out and vibration tests provided with documentation.
Compatible with ISIS and Pumpkin Structures and compliant to CubeSat Standard
Charging cables provided by default and custom Interface available

Availability: 12 weeks

Includes:

ICD
User Manual

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PERFORMANCE

Supply Voltage: 3.7V nominal, 4.2V at full charge for parallel or 7.4V ~ 8.4V for serial models
Supply Current: 6.2A/8A/10A/12.4A/16A/20A depending on the model or user choice
Typical internal resistance: 1 to 3 milliohms @ 25°C
Simultaneous charge and discharge capability
High discharge rate: 10 times the nominal capacity within 2 seconds
High-speed charge rate: 3 times the nominal capacity

PROPERTIES

Mechanical:
- Mass: 270 grams
- Dimensions: 101mm x 99mm x 23m (not including connector)

Operating Temperature:
- - 30 to +80°C w/o CN/TTB option
- - 60 to +120°C with CN/TTB option
Radiation Tolerance: 2 years minimum in LEO, 4 years minimum when the S/C has NEMEA shielding

MATERIALS

Base panel: FR4-Tg170
Shielding: Optional integrated Carbon Nanotubes Thermal Transfer Bus (CN/TTB) shield
Cell Material: Lithium polymer
Cell Interconnector: Silver plated copper
Interfaces:
- Custom choice, normally 2x Molex TMMS-105-01-G-Q-RA (two 4x5 pin connectors)
- PTFE (Teflon) space grade cables, multi strand, silver plated copper (AWG22 to AWG24)

TESTING

All batteries are provided with tests reports regarding the following tests:

Thermal Bake out (10E-5 mbar @ 50C for 24 hours)
Full vibration test for Soyuz, Falcon9, Falcon Heavy, Electron and Long March 2D vibration profiles, other LV profiles available upon request
QT and AT is performed on the unit to be shipped at no charge.

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