This one has a jst type plug - its for a charger that uses the jst balance type connection -

http://www.amainhobbies.com/product_...llet-Connector

I agree that the lack of standardized connections, especially balance connections makes it more difficult than it needs to be. Really once you get into it, its not bad, just involved - there are only 4 balance type connections in use today, at least its not more... The thing that disappoints me is some lipo resellers don't list the type balance taps their lipos use. Thats just poor.