When changing the arm, a soldering iron is required, to remove the ESC + and - battery cables.
Note: The choice of soldered connections here, instead of the much more convenient
connector option may not seem ideal.
Various connectors were tried, but one compact enough, robust enough, and capable of
carrying > 20 Amps per motor was not found.
A custom connector suitable for this application will be included in a future revision of the
Vortex to simplify the in-field replacement of arms.