2 things I do to stop the melting of deans plugs

Mechanical hands, or an alligator clip stand to hold the plug.

Plug the deans into an extra (unconnected) matching plug (Male / female).

If needed you can clip a heat sink to the prongs on the extra plug.
(Just use caution not to clip to both at the same time if there is power on the plug.)


Hope this helps.