World’s thinnest high power supercapacitors

Ask CAP-XX to propose the best supercap solution for your application.

CAP-XX will provide a detailed technical proposal showing the supercap performance and life in your application.

Download the APPLICATION WORKSHEET and email to

Latest News

CAP-XX awarded US$4.9m in Patent Litigation Victory

CAP-XX, the Australian manufacturer of the worlds thinnest, highest power prismatic supercapacitors has successfully defended its intellectual property in a US court action.  The Delaware District Court has awarded CAP-XX US$4.9M for patent infringement plus costs against Ioxus, Inc., a US manufacturer of supercapacitors. For full details on the award visit]
CAP-XX continues to develop new market leading super capacitors technology, with applications including energy storage, automotive, Smart Watches, Smart Electric Meters and Medical Devices. To see our line up of super thin, high power prismatic supercaps visit

Custom Design Resources

Our skilled Australian engineers can develop supercapacitor solutions to perfectly integrate with your application.

Monitor with custom design


• Micro-controller circuit design
• Optimum supercapacitor sizing
• Accurate lifespan balancing
• Charging circuit design
• Cell balancing and current limiting
• Measure and test supercapacitors and batteries