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Maxwell Technologies manufactures the world's leading high-performance production ultracapacitors, and is committed to providing high-reliability energy storage and power delivery components to a variety of markets. We design and manufacture BOOSTCAP® Ultracapacitors in our U.S. and Swiss production facilities for use in industries such as transportation, automotive, industrial and consumer electronics, and windmill - among others.

Our postage stamp-size small cell ultracapacitors extend battery life and enhance the performance and functionality of hand-held electronic devices, remote transmitting devices and toys. Our small cell line of ultracapacitors are UL Recognized Components.

Large cells can be linked together to form power packs of up to 500 cells to power initial acceleration, operate electrical subsystems and recapture energy from braking for cleaner, more fuel-efficient hybrid electric/internal combustion buses, trucks and automobiles.

Our POWERCACHE® modules, which are complete power systems incorporating our ultracapacitors, offer highly reliable solutions for bridge power applications requiring “zero downtime” power reliability. Working with system integrators and OEM partners, Maxwell Technologies can create solutions that can take full advantage of the BOOSTCAP ultracapacitor key characteristics which include:

  • high reliability and cycle life of over 500,000 cycles
  • rapid recharge capability within minutes
  • high power density
  • wider temperature range versus batteries
  • no maintenance

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