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ISISPACE Compact Electrical Power System

Compiled from public sources. Checked on 2026-11-07. Not independently verified by ISISPACE.

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ISISPACE's second-generation compact electrical power system is an off-the-shelf EPS for CubeSat missions typically up to 3U XL.

The ISISPACE Compact Electrical Power System (ICEPS2) is a compact electrical power system (EPS) for 1U to 3U CubeSat platforms in low Earth orbit (LEO), suitable for platforms up to 3UXL. It has flight heritage from 2018 on the Hiber-1 and Hiber-2 satellites.[1]

Datasheet issue 1.2, dated 26 July 2024, defines three configurations. Type A combines the Power Integrated Unit (PIU) with a 2S1P battery pack, Type B combines the PIU with a 4S1P pack, and Type C adds a daughterboard to Type B.[1] Optional battery packs of 28.8 Wh and 57.6 Wh are listed.[1] The system includes an integrated autonomous battery heater with thermostat control.[1]

There are three maximum power point tracking (MPPT) inputs, extendable to five. Standard outputs are a battery-voltage domain, a 5 V domain and a 3.3 V domain, which can be extended with the VD3 and VD4 buck domains and a VD5 boost domain.[1] Typical maximum-current limits are 3.01 A on PIU channels, 3.3 A on the daughterboard VD0, VD3 and VD4 channels and 1.5 A on VD5. Each of the VD1 to VD4 domains has a separate 4 A total.[1]

Without a battery, the operating range is -40 to +85 C. With heaters disabled, the battery discharge range is -20 to +60 C, and charging is limited to +10 to +45 C, or 0 to +45 C at up to 800 mA.[1] Typical masses are 184 g for Type A, 310 g for Type B and 360 g for Type C, and communication uses Inter-Integrated Circuit (I2C).[1]

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ISISPACE Compact Electrical Power System. EO-Atlas, SpectraWorks B.V., last reviewed 2026-11-07. https://eo-atlas.org/products/component/isispace-compact-electrical-power-system (CC BY 4.0)

BibTeX

@misc{eoatlas:products:component:isispace-compact-electrical-power-system,
  title = {ISISPACE Compact Electrical Power System},
  author = {{EO-Atlas}},
  publisher = {SpectraWorks B.V.},
  year = {2026},
  note = {Last reviewed 2026-11-07. CC BY 4.0},
  url = {https://eo-atlas.org/products/component/isispace-compact-electrical-power-system}
}