It looks like this group by is going no where. I'm going to spend $180 for a all weather battery shipped direct from Braille. The $40, I'll make up with interest. Before this vendor gets organized and answer questions from the board it will a couple of years the way everything is going. I hope that the group buy works for the guys that already paid.
There is currently no group buy. This thread concerned one which ended. People have been talking in this thread about another one but there hasn't been enough interest for one. Need to read whole thread.