Originally Posted by
fq06
I did the same thing with a MMP rushing to the stand for the main.
+1 on red shapie on the pack and red shrink tube on the wire.
Or if possible, ESC not inline with the pack. Make your wire a length to where you can't possibly plug them in cross polarity. I would just about have to rip my ESC off its base to get the + wire to the - port.
All black wires, no markings, no worries.

You can also leave the wires plugged in all raceday and charge with alligator clips on the base of the plugs.
Then you only have to plug in once per day. Less plug wear as well.