Spintronic inductors are heavy, allowing them to build momentum. It takes a lot of energy to get them moving, but once they are moving, they don't want to stop.
Detailed description
These spintronic inductors have a fixed value of 55 spin henrys. They build significant momentum even with low currents. The three steel balls at the perimeter of the inductor also act as flyweights, causing the inductor to brake itself under high current. This is a safety feature to stop the inductor from building up an unsafe amount of energy.
