I already gave you the answer. Unless your bike has a threaded fork, there's no need for a "threadless stem adapter".
I'm assuming your Charge Plug has a threadless setup. Is it 1" or 1 1/8"? If it's 1", you'll first need a shim to bring it up to 1 1/8":
http://www.jensonusa.com/store/produ...1+18+Stem.aspx
There are a vast multitude of 1 1/8" x 31.8mm stems available. Pick one, buy it and install the damn thing on your bike.