OBC - Cubesat 2

Cubesat Battery Pack

Solar Array

High Energy Density of Lithium ion battery pack for nano-satellites. 

The unit can be customized depending on mission requirements (4P / 2S 2P / 4S). Other configurations are available (up to 16 cells). The standard configuration provides 2S 2P configuration (42 Whr) and 8.4V terminal voltage at end of charge.

Each cell is provided with a heater to prevent cold temperature (below -5°C) monitored by 2 temperature sensors. Over protection, as overcurrent, overcharge, over-discharge are implemented. The unit is fully compliant with other Cubesat Subsystem.

The IMT has an internal Cell Acceptance Test Procedure, the procedure is composed by different steps to investigate the manufacturing and state of conservation of the cells. Visual inspection, mechanical and electrical measurements, X-Rays, DPA (on sample basis), Automated Charge/Discharge/Internal Resistance measure, Vibration, Vacuum tests are parts of the IMT Procedure.

The customer can qualify his battery pack thanks our Battery Test Facility.


Physical Characteristics

Dimensions (l x w x h)

96 x 90 x 25 mm
Mass (with Heaters)240 g
Random Vibration10 Grms (all axis)
Operating Temperature-10°C to +60°C
Life Time< 3 years

Qualification and Acceptance Testing


Qualification TestAcceptance Test
Mechanical ShockYESOn Request
Thermal CyclingYESOn Request
X-Ray InspectionYESYES
solar array
Cubesat Battery Pack
Cubesat Battery Pack

Performance Properties

Electrical specifications:

  • Capacity: 12400 mAh
  • Voltage: 6.0V -8.4V
  • Charge Current: configurable (standard 1000 mAh)


  • Cubesat Kit Bus


  • Compatible with ISIS, GOMSpace, CubeSatKit and ClydeSpace products
  • Compliant with CubeSat standard
  • Acceptance COTS Li-ion cells by IMT procedure
  • Heaters, temperature sensors, overcurrent protections
  • Customer Battery Qualification available in IMT Battery Test Facility
  • Other configuration to increase the capacity

Available on request

  • Battery Pack configuration 4S / 2S 2P / 4P
  • Heaters