Maxwell Technologies Ultracapacitors

Changing the Way Energy Is Stored

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Available in a range of sizes and modular configurations, our BOOSTCAP® ultracapacitors bring new levels of efficiency and power to a wide range of applications, including consumer electronics, hybrid cars, and renewable energy sources. Our proprietary electrode and global manufacturing facilities allow us to deliver unsurpassed value, keeping costs down while tailoring performance to specific customer requirements.

Rely on award-winning BOOSTCAP® products for a proven lifespan of one million recharge cycles—even in extreme environments—helping you reduce maintenance costs while adding value to other power sources.

Click here to download our Product Comparison Matrix to find the ultracapacitor solution ideal for your application—or simply browse through our many product pages.

"Maxwell’s standardized ultracapacitor technology will help to drive down the costs and limit the complexity of integrating ultracapacitors in the design and production of our hybrid-electric clean vehicles." —Tom Bartley, New Business Manager, ISE Corporation