Alban Regnier, François Mallet, Maxime Bleskine, Thibaud Maufront
C4 Ventures team
About VoltR
VoltR is a French industrial company specialized in the remanufacturing of lithium-ion batteries from portable electronic and mobility applications. Our mission is to give a second life to used lithium cells by manufacturing high-performance, eco-designed, and locally produced batteries. Beyond providing competitive solutions in terms of quality, cost, and lead times, we address major environmental and industrial challenges by reducing raw material extraction, extending battery lifespans, and building a strong circular value chain for professional batteries.
Environmental impact and innovation
Through our industrial approach to circularity, we can cut battery carbon footprints by up to 86%. Our proprietary AI-assisted diagnostic technology optimizes cell selection and assembly to ensure both performance and durability. We position ourselves as a pragmatic enabler of Europe’s energy transition and sovereignty.
"C4 Ventures stands out through its hands-on and operational support, well beyond the financial commitment. From the due diligence process to their ongoing involvement on our board, we have appreciated their constructive approach, their network, and the ability to challenge and support us as true sparring partners. Their Operating Partners have been instrumental in connecting us with key industrial stakeholders, accelerating both our strategic and operational roadmap."
Maxime Bleskine, Founding partner & CEO
Long-term vision
VoltR aims to become the European reference in lithium battery remanufacturing. Our short-term focus is on increasing our industrial capacity, scaling up our partnerships, and helping integrators adopt responsible battery strategies. We firmly believe in a local, circular industrial economy that combines performance, resilience, and positive impact.