# ISISPACE Compact Electrical Power System
*component . products*

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

## Specifications
- **manufacturer**: isispace
- **deployment context**: orbital
- **entity type**: component
- **last verified date**: 2026-05-28
- **verified by**: operator
- **claim status**: unclaimed
- **subtype**: power
- **provider**: isispace
- **attributes**: {"kind":"component","product_status":null,"manufacturer":"isispace","description":"ISISPACE's second-generation compact electrical power system is an off-the-shelf EPS for CubeSat missions typically up to 3U XL.","sensor":null,"bus":null,"ground_segment":null,"launcher":null,"analysis_service":null,"deployment_context":"orbital"}

## Editorial
ISISPACE Compact Electrical Power System, also identified as ICEPS2, is a compact electrical power subsystem from ISISPACE for 1U to 3U sized CubeSat platforms and low Earth orbit missions, with the product page saying it is typically used up to 3UXL.[^iceps2-page][^iceps2-datasheet]

The datasheet issue 1.2, dated 2024-07-26, describes three configurations: Type A with Power Integrated Unit plus PBP-2S1P battery pack, Type B with Power Integrated Unit plus PBP-4S1P battery pack, and Type C adding a Power Integrated Unit DaughterBoard.[^iceps2-datasheet] The architecture provides VD0 battery voltage, VD1 at 5 V, VD2 at 3.3 V, and Type C adds VD3 and VD4 buck domains plus VD5 boost through the daughterboard.[^iceps2-datasheet]

For energy storage, the product page gives 22.5 Wh for Type A and 45 Wh for Type B and Type C, while the datasheet issue 1.2 gives available configurations from 28.2 Wh to 57.6 Wh.[^iceps2-page][^iceps2-datasheet] For thermal limits, the product page summarizes operating temperature as -20 C to +70 C, while the datasheet gives condition-specific limits of -40 C to +85 C without battery and -20 C to +60 C for battery discharge, with narrower charge ranges.[^iceps2-page][^iceps2-datasheet]

The datasheet lists I2C communication, typical PIU channel current of 3.01 A, typical PIU-DB channel current of 3.3 A, and 4 A total per regulated voltage domain.[^iceps2-datasheet] Typical masses are 184 g for Type A, 310 g for Type B, and 360 g for Type C.[^iceps2-datasheet]

## Sources
- [iceps2-page] | ISISPACE Compact Electrical Power System product page | https://www.isispace.nl/product/compact-electrical-power-system/ | tier=operator-marketing | accessed=2026-05-28
- [iceps2-datasheet] | ISISPACE Compact EPS 2 datasheet, issue 1.2 | https://isispace.nl/wp-content/uploads/2025/01/ISIS-ICEPS2-DSH-0001-ICEPS2_Datasheet-01_02.pdf | tier=operator-datasheet | accessed=2026-05-28

---
Source: https://eo-atlas.org/products/component/isispace-compact-electrical-power-system
Maintainer: SpectraWorks B.V. (CC-BY 4.0)