Ok. these ultras are giving me headaches.Ok. these ultras are giving me headaches. Ultra number one I had an ultra on a batteries. Inserted a power pack in it. No luck. Put the batteries back in. It wouldn't reconnect. Tried syncing. No luck. So after many tries I removed the device from the system and tried to reconnect. Cannot get it to reconnect. Ultra number two. Had a power pack in it. Removed it to connect to another ultra (Ultra number three). THAT ultra would not work with the power pack. So I put batteries back in. It works. However, when reattaching power pack to the Ultra number two, it doesn't work. Tried batteries in number two. STILL doesn't work. Tried re-syncing. No luck. Don't want to remove the device from the system as I am fearful that the same thing might happen. Anyone have any ideas? Gotta say that I have not had this issue with the Pro 2's that I have. Seriously thinking about getting rid of all my Ultra's and converting to Pro 2's.