Saft has launched the 3rd generation of its Flex’ion lithium-ion battery system for uninterruptible power supply (UPS) applications in data centres and other mission-critical facilities.
The TotalEnergies subsidiary said Flex’ion Gen3 uses lithium iron phosphate (LFP) cells and can deliver 268kW from a 67kWh cabinet. The company claims a power density of up to 864kW/m² and energy density of 216kWh/m².
According to Saft, the figures for the 3rd generation models represent an approximately 30% increase in power density and a threefold increase in energy density compared with the previous Flex’ion Gen2 system. The increased output of the 3rd generation is intended to reduce the number of cabinets required for a given UPS configuration.
The battery is aimed at applications including data centres, hospitals, industrial processes, sensitive infrastructure and railway signalling. Its modular architecture is designed to accommodate different site requirements and UPS configurations.
Flex’ion Gen3 incorporates Saft’s in-house battery management system, based on the certified system used in previous Flex’ion products. An optional fire-suppression system can be integrated directly into the cabinet for installations requiring additional protection.
Saft said the cabinet is delivered fully assembled to reduce installation and commissioning time. The introduction of a new LFP module is also intended to make the system more affordable while improving power, energy density and ease of integration.
3rd generation: designed in France, built in Czechia
The product was developed by Saft’s research and development teams in Bordeaux, France, and is manufactured at the company’s Raškovice facility in the Czech Republic. Saft said this European manufacturing base would support shorter delivery times and provide customers with access to Europe-based project and service teams.
Ignacio Quiles, vice-president of sales and marketing at Saft’s industry, mobility and infrastructure division, said: “With Flex’ion Gen3, we are setting a new benchmark for mission-critical power reliability. Data centres, hospitals and industrial infrastructure cannot afford a single second of downtime. This new generation was engineered to meet that reality: enhanced power, more energy, higher safety and a significantly improved total cost of ownership, all within a compact, European-built system.”


