Whilest pouting because LiIon Wholesale is out of stock on my favorite new NCR20700B’s I noticed these Lishen 20700’s are on sale for about half the price of the Sanyos.
Caveat that these are 2 year old cells and they are only 12A, but within those limitations and your tolerance for risk this could make for a very inexensive battery pack.
I picked up 50 for a new pack for one of my esk8’s. $227!
No association, just passing along a good deal.