I remember when Lihium Polymers didn't come with a balancer. I actually had a few. I even had the Highest capacity single cell lipo. I still don't balance most of my packs. I only use a balancer on my 5S TP packs. I balance them before and during the charging. BTW here is a picture of that highest cpacity cell and pack:
http://www.rcpics.net/view_single.php?medid=80310,
http://www.rcpics.net/view_single.php?medid=80309 and
http://www.rcpics.net/view_single.php?medid=80308. The M18 is just to show the size of the pack and cell.