A Reverse Polarity Situation?
Did you know Deans Connectors are actually marked?
I highlighted the markings with a sharpy for this picture.
I bought a RC Boat from Ebay one time. It has a pair of Titans in it and the EVX ESC. Just to try it out, I got a pair of my 5000mah Lipos that I had been using with Monster Trucks.
I'm not sure if the ESC was turned on or not, but there was a HUGE spark when I plugged it up.
The Wires got VERY hot and one of my Lipos let go. All of this happened in a few milliseconds. I didn't have time to unplug it before this happened even though my hands were still on the plugs.
This took out the ESC and one of my Lipos.
After some checking, I figured out the guy I got it from had "upgraded" to Deans.
He installed them reverse polarity on the ESC, AND on his batteries. So it worked for him.
He would not make good on it. I filed a dispute with paypal about it, thinking I would show them my "proof".
The guy left me negative feedback accusing me of lieing about the entire thing. Then Paypal ruled in his favor and closed the dispute without even contacting me for more information.
If you get something used, it pays to double check everything.