Compact 64 Wh / 4.5 Ah space lithium-ion battery for microsatellites and nanosatellites in LEO and small GEO orbits.
4S1P VES16 Battery
Compact 64 Wh / 4.5 Ah space lithium-ion battery for microsatellites and nanosatellites in LEO and small GEO orbits.
Description
The Saft 4S1P VES16 battery is a compact, space-qualified lithium-ion battery module based on VES16 cells in a 4-series, 1-parallel arrangement. It provides 64 Wh of energy at a nominal pack voltage of 13.2–16.4 V and is sized for very low power missions such as microsatellites and nanosatellites. It can be used standalone or assembled in larger arrays to scale power from 30 W to 12 kW depending on mission needs.
The battery includes circuit breakers at cell level, thermal sensors, heaters, an MDMA 37P connector for power and telemetry, an aluminium structural plate, and a stainless steel housing. More than 80 spacecraft are in orbit with VES16-based batteries. Batteries are assembled at Saft's Poitiers facility.
Specifications
| Chemistry | Li-ion |
|---|---|
| Cell Configuration | 4S1P |
| Capacity | 4.5 Ah |
| Nominal Energy | 64 Wh |
| Pack Voltage Range | 13.2 – 16.4 V |
| Mass | 0.7 kg |
| Length | 90.5 mm |
| Width | 84.1 mm |
| Height | 77 mm |
| Cycle Life | > 25,000 cycles |
| Design Life | > 5 years |
| Storage Temperature | -20 to +40°C |
| Connector | MDMA 37P |
| Orbit Compatibility | LEO, small GEO |