3 Volt Ultracapacitor Cells

By Maxwell Technologies Inc 237

3 Volt Ultracapacitor Cells

Maxwell Technologies’ 3 volt ultracapacitor cells are designed to provide energy storage in support of the latest trends in renewable energy, smart grid, and IoT. Designed from the ground up, Maxwell developed the 3 volt small cell products to be high-energy, high-power solutions that also incorporate XP™ technology, offering enhanced performance under adverse environmental conditions. Whether used alone, integrated into a module assembly, or in a hybrid configuration, Maxwell’s 3 volt products will help reduce the overall cost and size of the system while improving return on investments for the customer.

Ultracapacitors are the technology of choice for high-energy and high-power applications because of their longer operating lifetime, low maintenance requirements, and superior cold weather performance when compared to batteries.

  • Enhanced performance under adverse environmental conditions
  • Updated bill of materials compared to earlier 2.7 volt XP products, resulting in improved performance at higher voltage
  • Long lifetimes with up to 1,000,000 duty cycles*
  • Straight- and bent-lead versions available
  • Compliant with UL, RoHS, and REACH requirements
  • Actuators
  • Emergency lighting
  • Telematics/IoT
  • Security equipment
  • Backup and UPS systems
  • Advanced metering


  • 3 volt small cells are an expansion of Maxwell's XP brand, giving the same performance as the Gen 1 XP line but with a more user-friendly design
  • Maxwell's 3 volt solutions provide a cost-efficient, high-performance, and long-life platform. This innovation provides end users the flexibility to:
    • Use fewer cells in their designs to address high voltage applications, or
    • Use the same number of cells as the previous generation, but with increased power and energy
  • Derated voltage for extended life
  • Available capacitance: 3, 5, 10, 25, and 50 farads

*Results may vary. Additional terms and conditions, including the limited warranty, apply at the time of purchase. See the warranty details for applicable operating and use requirements.