First off, who came out with a flat cell A123?
I don't use the A123 chargers, i use a lab quality programmable power supply to charge my packs, very universal and versatile piece of equipment.
http://picasaweb.google.com/SethHuls...44617238092930
Although, I am on the look out for a 0-40volt, 0-20amp unit. For the mean time I am going to probably get a Hyperion 720i.