HARDWARE / PRODUCTAdded 13 Jul 2026

VES16 8S4P Battery

Saft
VES16 8S4P Battery

512 Wh / 18 Ah space lithium-ion battery in 8-series 4-parallel configuration for LEO and small GEO satellites.

Key figurescomparable across the catalogue

Mass
5 kg

Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.

As published by the supplier

Chemistry
Li-ion
Cell configuration
8S4P
Capacity
18 Ah
Nominal energy
512 Wh
Pack voltage range
25.0 – 32.8 V
Mass
5 kg
Length
308 mm
Width
180 mm
Height
90 mm
Max dod (GEO)
80%
Max dod (LEO)
30%
Orbit compatibility
LEO, small GEO

About

The Saft VES16 8S4P battery is a mid-range space-qualified lithium-ion energy storage unit built from VES16 cells in an 8-series, 4-parallel configuration. It delivers 512 Wh at a pack voltage of 25.0–32.8 V and is designed for satellite power subsystems ranging from tens of watts to several kilowatts.

Key features include circuit breakers and cell-level venting for safety, thermal sensors and heaters, an individual cell balancing system (SBS), and a dedicated connector for power and telemetry. The battery supports depth of discharge up to 80% in GEO and 30% in LEO orbits.

Documentation

No public datasheet yet — request the datasheet / ICD from the supplier.

Source: saft4u.saft.com ↗

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