what power cap to use

[Arct1k]

This is the Gizmo bit :

The Novak capacitor modules have more than just a power capacitor, we have also included on this module two Transient Suppressors and three High Frequency Decoupling Capacitors.

The two Transient Suppressors act like a voltage clamp and prevent high voltage spikes from damaging the ESC, and the three High-Frequency Decoupling Capacitors filter out radio interference noise.