Expandable battery system

Suitable for all satellites

Built-in protection

Micro/nano satellites

5 years design life

4 LiIon 18650 cells

4s or 2p2s configuration

2600 mAh per cell

7.4V or 14.8V nominal

288 grams

Price from: 5,000 EUR

Delivery: 4 weeks

The Powerbank 4 is hand made by Space Inventor

using LiIon cells with nearly

two decades of heritage in nano satellites.

All cells are screened and matched

before re-wrapping and integration in the

aluminium enclosure.

The Powerbank 4 battery system uses Space Inventor’s well-established form-factor and is designed to stack with Powerplant 6U. The hi-rel chassis connectors allow the flexibility of disconnecting the battery or connecting external emulation or measurement instruments without disintegrating the spacecraft.


– Remove-Before-Flight and kill switch interface

– Data interface: CAN with CSP protocol

– Compatible with CubeSat Kit (PC104)

– Glenair Micro-D mechanical interface connectors

– Overvoltage / undervoltage protection


– Dimensions: 94 mm x 88 mm x 24 mm

– Temperature range -40 C to +60 C

– Mass: 288 g

– IPC-A-610 Class 3 assembly

– TID: 5 years in SSO / 15 Years in ISS orbit


– Voltage: 7.4V or 14.8V nominal

– Capacity: 5200 mAh @ 7.4V / 2600 mAh @ 14.8V

– Charge current: 1C

– Discharge current: 2C