I am curious as to what the guys experimenting with A123s here think of the zip charging method discussed in this thread on an RC forum

http://www.wattflyer.com/forums/showthread.php?t=25492http://www.wattflyer.com/forums/showthread.php?t=25492

If I am reading this correctly, A123s are pretty dam robust both on the discharge and charge and can be charged with little more than either a homemade charger (check out the terminator 2 from Dan Baldwin) or even just a car battery or two with a length of cable to act as a resistor to limit the charge.