What's this? (ESC Questions..)

[What's_nitro?]

Originally Posted by Dj_Sparky

Does anyone know what the red wire from the battery main is for?

I think it's a sacrificial contact used to charge the capacitors before plugging in the main bullet connector. Plug in the negative bullet, touch the little plug to the positive bullet where the spark won't hurt the mating surface, then plug in the positive bullet while still holding the little plug against it.