Deans 3-pin connector set (black)
Genuine Deans brand 3-pin black connector set (SET = 2 pcs). Mating connectors; 1 for Battery pack, 1 for motor/charger. Highest quality connector, for small-to-mid size amperage motor applications. Original Deans part # 1003.
The battery end (the one that is ON a battery pack) only has pins sticking out of 1 side.
The mating end (Charging end) has pins sticking out of Both sides).
Polarity (see picture, going Top to Bottom):
Signal (or just not used).