I had a problem with my SkyZone goggles: I was constantly breaking battery cable near XT-60 plug. One not careful enough grip and cable was ripped away. I've decided to fix it and permanently secure the cable with epoxy glue.
Sure, I could use hot glue (that looks ugly) or Sugru (that is expensive), but since few weeks ago I've bought HobbyKing Mid-Cure Epoxy glue, I've decided to use it instead. It worked fantastically!
Solder cables to XT-60 plug pretty close to external coating as possible.
Now, prepare a "mold" using electrical tape. Just wrap it around plug and cable leaving empty space inside. Prepare epoxy glue and pour it into "the mold".
After and hour or so, epoxy glue will be hard enough, that electrical tape can be removed. There is no chance I could ever rip this cable from the plug by accident!