Tar 21 connectors keep blowing ?????

[Adam9814]

Ok, im using lipos with the ares tar 21 - The start of the week the connectors on the gun and battery both blew and melted together, couldnt understand why so i cut them off and picked up some more. But every time i put new connectors on the battery and the tar and the connect them together they work fine - its just when i cramp the battery and the wires into the stock and then close, everytime i close bang they blow again. im not sure if its the power from the lipos or what bit of help please as im on my last connectors and if they go will have to buy a bundle more.