Impulse capacitance cell
An impulse capacitance cell  was an energy storage device connected to the impulse drive in starships such as the . It held enough power for a single short impulse burst during emergency situations.

In 2371, B'Elanna Torres released power from the 's impulse capacitance cells into its driver coils in the hopes of breaking free from a magnetic wake generated by a swarm of space-dwelling lifeforms. ()

Propulsion technology