normal to see a spark when connecting deans plug lipos?

[Sammus]

Yeah its normal, pissed me off though, my bro came down for his yearly visit with all his RCs and all keen to see my erevo in action, out in the dunes ready to go. doesnt work. Upon closer inspection the terminals in the F socket which i always did second were all black and corroded and crap on the inside, and it wasnt making contact.

[lutach]

I like big sparks . Makes me look tougher and scares the crap out of the nitro guys.