# ISISPACE Modular Electrical Power System
*component . products*

ISISPACE's second-generation modular electrical power system is a distributed small-satellite EPS with power conditioning, battery pack, battery unit, and distribution modules.

## 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 modular electrical power system is a distributed small-satellite EPS with power conditioning, battery pack, battery unit, and distribution modules.","sensor":null,"bus":null,"ground_segment":null,"launcher":null,"analysis_service":null,"deployment_context":"orbital"}

## Editorial
ISISPACE Modular Electrical Power System, also identified as IMEPS2, is a modular electrical power subsystem from ISISPACE for CubeSat missions from 3U upwards.[^imeps2-page][^imeps2-datasheet]

The datasheet issue 2.0, dated 2024-07-30, describes an architecture built from a Power Conditioning Unit, Power Battery Unit, Power Battery Pack, and Power Distribution Unit.[^imeps2-datasheet] ISISPACE lists IMEPS2 flight heritage from 2020 and design heritage from ICEPS1 and IMEPS1.[^imeps2-datasheet]

The datasheet lists an operating temperature of -40 C to +70 C, a 12.8 V to 16.0 V rail, approximately 12 A rail maximum current, VD0 x4, VD1 x4, VD2 x4 output channels, and an optional daughterboard with VDx x4 channels.[^imeps2-datasheet] Output current has a maximum 3 A per channel, with VD1 and VD2 totals of 4 A continuous and 6 A peak.[^imeps2-datasheet]

The product page states four independent MPPT channels, and the datasheet lists four MPPT channels per PCU board.[^imeps2-page][^imeps2-datasheet] For module mass, the product page lists PCU 58 g, PBP 252.0 g, PBU 48.7 g, and PDU 58 g including full CSKB, while the datasheet lists PDU mass as 51.6 g top mount or 57.4 g bottom mount including full CSKB and PBP mass as 252 g.[^imeps2-page][^imeps2-datasheet] The battery pack is described as a PBP-4S1P lithium-ion pack, with the product page stating 45 Wh per pack and the datasheet listing 3200 mAh cells with 14.4 V nominal battery pack voltage.[^imeps2-page][^imeps2-datasheet]

## Sources
- [imeps2-page] | ISISPACE Modular Electrical Power System product page | https://www.isispace.nl/product/modular-electrical-power-system-2/ | tier=operator-marketing | accessed=2026-05-28
- [imeps2-datasheet] | ISISPACE Modular EPS 2 datasheet, version 2.0 | https://www.isispace.nl/wp-content/uploads/2025/01/ISIS-IMEPS2-DSH-0001-Datasheet-02_00.pdf | tier=operator-datasheet | accessed=2026-05-28

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