Building A123 Packs

[legobrains]

I just got 2 dewalt packs (20 cells) for $170 shipped, and they are new.
http://www.rcgroups.com/forums/showthread.php?t=794975
He only has 2 trader feedback, but he seems legit, read the post, he can do an ebay buy it now for $10 more.

Anyways, I was thinking about making a bunch of little 2 and 3 cell packs, and then a bunch of adapters to combine them. Like these:
http://www.helidirect.com/product_in...oducts_id=5387
http://www.helidirect.com/product_in...oducts_id=5389

Then I can make it a 5 cell, or 6 cell, or 2, 3, and 4 cells by using the connectors. In parallel or series, depending on what I want.

And as far as balancing them, I have an LBA10+ that can balance them, but they dont need balancing as much as lipo.
If you dont have a balancer, just do what Johnrobholmes said, charge them slow once in a while and they will balance them selves out.