Clarios Acquires Maxwell Technologies Extending Commitment to New Low Voltage Energy Storage Opportunities
Maxwell to operate as an independent business in the Clarios portfolio
GLENDALE, Wis., Nov. 12, 2025 /PRNewswire/ — Clarios, a global leader in low-voltage energy storage solutions, today announced its acquisition of Maxwell Technologies, a manufacturer of supercapacitor cells and modules utilized in mobility, grid and onsite power applications, including for data centers. Terms of the deal were not disclosed.
This strategic move strengthens Clarios’ position in high-performance, short-duration energy storage solutions. Unlike conventional batteries, supercapacitors charge and release energy almost instantly – perfect for storing excess energy and supporting systems during sudden spikes in peak demand. Supercapacitors deliver up to 1 million cycles, operate across extreme temperatures (-40°C / -40°F to +65°C / 149°F), and require no maintenance or fire-risk mitigation. Key benefits for Clarios include:
- Supply Chain Stability: Supports Clarios’ commitment to building a supercapacitor supply chain, to support U.S. and global OE customers.
- Strategic Fit: Complements Clarios’ leadership in battery circularity and low-voltage solutions.
Maxwell Technologies brings decades of innovation in supercapacitor systems. With over 85 million supercapacitor cells shipped and applications spanning U.S. energy generation, grid stabilization, automotive, transportation, and industrial automation, Maxwell’s technology enhances Clarios’ ability to deliver next-generation energy storage solutions.
Mark Wallace, CEO of Clarios, said:
Maxwell’s supercapacitors are designed to provide customers with high-power energy storage solutions that emphasize reliability, safety, and long life,
“This integration strengthens our ability to serve our automotive customers and creates a long-term opportunity to expand our presence in non-automotive sectors. Maxwell’s existing customer relationships in Data Centers, Grid, Military and Industrial applications will be maintained and actively developed under Clarios’ leadership.”
Clarios will operate Maxwell Technologies as an independent U.S. based business unit.
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Clarios Acquires Maxwell Technologies Extending Commitment to New Low Voltage Energy Storage Opportunities, source
