ive bought 3 different batteries for my blade mcx from different places, and none of them will plug into my heli or charger. has any one else had this problem. they are exactly the same as the one that came with it but just wont plug in. heeelllp please.

Get your soldering gun out and change the ends to what ever you what (make them all the same).

Charlie - do you realize that one Deans Connector is twice the weight of the entire mCX

baurwin - many have noted about connectors not working as they should. try bending the pins ever so slightly and you should get it to work... I had a hard time getting the battery to mount into the charger until I discovered thatt by putting a slight bit of forward pressure (that is, leaning the top of the battery towards me) as I pushed down, got it to seat properly.