The site says that they are hyperion taps, but the last pack that I got a couple of months ago had a tap on it that didn't fit my hyperion to tp converter. When I called, the "girl" that answered the phone told me that they changed the adapter, but couldn't give me any more information. I just tore the wrapper off and soldered on a tp tap. The easier way is to order the appropriate adapter with the battery.
This is the reason that I prefer flightpower packs. I'm just trying to standardize.