Thank you everyone. Those pictures really helped me better understand this whole process! Now, another question.... if I don't want to solder the ESC to the plug so I can easily put another battery on while charging the first... how do I connect it? Do I just... plug it in?
ORIGINAL: Sneasle
In the end no part of your setup should be directly soldered to another. The motor should plug into the ESC, the ESC should plug into the battery, and the ESC should plug into the receiver. This makes it easy to change out parts if something fails.