Yes, those are the locations you don't have to neccessarily unplug both if you are just going through start-up/ shutdown procedures. I only unplug the neg(black) some recomend the positive connection. As long as you do one or the other you won't (shouldn't) ever have a problem. (keeping in mind that the tail rotor still has enough power to turn your heli completly around and offf the kitchen table.)......(the cat still won't come near the table anymore.)

P.S. I hope that this answers your question. Please remember that the only stupid question is the one you don't ask. If anybody gives you any problems about asking a question the moderators will HANDLE them! that is not tolerated here.