Maxwell Technologies Inc.’s Boostcap 2.5V ultracapacitor cells and multi-cell packs have the same external dimensions as the familiar C-size battery but weigh only one-third as much.

The 120-farad BCAP0120 P250 Power-type C-cell is engineered for high-cycling applications that require the lowest equivalent series resistance (ESR) and highest efficiency, while the 140-farad BCAP0140 E250 Energy version is designed to provide more economical solutions for lighter duty applications. Both lines can be packaged in a six-cell, 15-V pack.

The ultracapacitors are hermetically sealed with a double seaming process to ensure long life and reliability. Applications include industrial robotics, actuators, telecommunications back-up, aircraft door and air bag actuation, and distributed power nodes for automotive subsystems.