Maxwell Technologies, Inc.

- For more than 45 years, our world-class research and product development teams have established Maxwell Technologies as a global leader in developing, manufacturing and marketing energy storage and power delivery solutions for automotive, heavy transportation, renewable energy, backup power, wireless communications and industrial and consumer electronics applications as well as for radiation-hardened microelectronic components and systems for satellites and spacecraft. Maxwell products are designed and built to provide failure-free performance for the life of the most demanding applications.

Newest Products View All (5)

3 Volt Ultracapacitor Cells

Maxwell’s 3 volt ultracapacitor cells are designed to provide energy storage in support of the latest trends in renewable energy, smart grid, and IoT. Learn More

DuraBlue™ K2 Ultracapacitors

Maxwell Technologies expands its K2 family of ultracapacitors with the 2.85 V, 3400 Farad cell. Learn More

K2 Series Ultracapacitor

Maxwell’s K2 ultracapacitor cells have an electrostatic storage capability that can cycle a million charges and discharges without performance degradation. Learn More

HC Series Ultracapacitor

Maxwell Technologies' HC cells offer low internal resistance, 10 year life capability, and are rated at 2.7 V at 65°C and 2.3 V at 85°C. Learn More

D Cell Series Ultracapacitor

Maxwell's D Cell ultracapacitors have an operating temp range of -40°C to 65°C and radial mounting design for easy surface mount assembly. Learn More

Recent PTMs View All (7)

K2 Cell Series of Ultracapacitors Publish Date: 2012-10-16

Specifications, usage, and part number breakdown of the K2 cell ultracapacitors. Applications include hybrid diesel electric busses and industrial backup power.

Duration: 5 minutes
D Cell Series of Ultracapacitors Publish Date: 2012-08-24

D cell series feature radial mounting design for easy surface mount assembly. Benefits include high burst power, quick charge, and green technology.

Duration: 5 minutes
75V Module Series of Ultracapacitors Publish Date: 2012-08-24

Specifications, applications, and naming conventions for Maxwell's 75V module series of ultracapacitors.

Duration: 5 minutes
56V Module Series of Ultracapacitors Publish Date: 2012-08-22

Features include standard rackmount configurations and a 14 year lifetime. Easily integrated into existing systems and maintenance free with no toxic materials.

Duration: 5 minutes

Featured Videos View All (3)

Maxwell Technologies Ultracapacitors Power Emirates Air Line Cable Car

Roof-mounted Maxwell Technologies ultracapacitor

Ultracapacitor 101

What is an ultracapacitor?

AWEA Windpower 2014 Company Showcase: Maxwell Technologies

Eize de Vries interviews Maxwell Technologies' Sr. Product Marketing Manager, Wolfgang Beez, about Maxwell Technologies and the advantages of using ultracapacitors in the renewable energy sector.