no, you buy the 36v pack, it''s made up of 10 cells. Then you can break the pack up into 5 2cell batteries. Each cell is nominally 3.3v, a more when fully charged, a bit over 7v I think. So I was a bit concerned about the voltage level being high.

I''ll have to check ebay again... the prices must have come down a bit. I got one there about a month back and 145 was the cheapest I could find.