Does the length of a bullet connector matter when using with QS8's

[dk10438]

I have bullet connectors on my ESC which I am using with QS8 connectors on my batteries. The male end of the bullet is 7mm in length. However, when I look at the length of male portion of the QS8 it looks significantly longer than 7mm, maybe 11-12 mm.

When I look inside the positive terminal of the QS8 plug I see an inner ring which I assume separates the resistor portion of the plug from the conductor portion and that depth looks to be around 4-5 mm.

Somewhere I read that the resistor portion does not actually conduct any current which is why the car won't operate if the QS8s are not completely plugged in. There seems to be some sort of resistance in my system and I'm wondering if the "short" bullet plugs are part of the problem because essentially I'm using an 8mm bullet that is only penetrating 2mm into the female connector??? Can somebody enlighten me?

 

[Dan B.]

Even if that is not the culprit (I would guess that it is, though) I would definitely install longer 8mm bullets that seat well into your QS8’s. Two mm of contact depth is nowhere near enough for the kind of amps you’re pulling.