Startup Has Repurposed Electric Vehicle Batteries
French startup Battwoo has successfully converted retired vehicle batteries into stationary storage systems.
Updated on Sept. 21, 2026 in Electric Vehicles
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Battwoo is extending the operational life of electric vehicle batteries by turning them into stationary energy storage solutions. These refurbished systems are now active at a French padel club and an agri-food cooperative.
Why it matters
The initiative addresses the growing challenge of end-of-life battery disposal while providing a cost-effective alternative for energy storage. By repurposing modules, the firm aims to slash both the price and carbon footprint of storage infrastructure.
Refurbished systems currently support up to four cycles per day and utilize modules that retain 70 to 80 percent of their original capacity. A typical 350 kWh installation assembles 56 individual battery modules.
The players
Battwoo
This French startup specializes in creating stationary energy storage systems from second-life electric vehicle batteries.
The details
Battwoo sources batteries that still retain high capacity and refurbishes them at a specialized workshop in Madrid. These units produce one-quarter of the carbon footprint of new systems and are designed for industrial use.
Timeline
The company currently operates in a scale-up phase as of September 2026.
Roadmap
This approach signals a broader shift in the automotive industry toward valuing battery assets well beyond their original vehicle lifespan. By focusing on secondary markets, manufacturers and startups are competing to capture value from components previously destined for early disposal.
These storage systems offer businesses a way to integrate renewable energy at a 30 percent discount compared to new battery products. The reduced cost barrier could increase the adoption of onsite energy storage for cooperatives and commercial sports facilities.
The takeaway
The transformation of electric vehicle batteries into grid-ready storage units demonstrates that significant value remains in components even after they drop below peak efficiency. This second-life strategy effectively decouples the necessity for high-performance transport from the long-term viability of battery storage.
Further reading
Learn more about the evolving landscape of sustainable transport in our Electric Vehicles section.
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Would you consider purchasing refurbished technology if it offered significant cost savings and environmental benefits?
