ahhhh I took out your bolding and added my own...

sorry for the thread jacking...

A123 are great if you are a bit careless with you batts....they are robust, have a long life cycle, and are relatively cheap...

By the way if you are ghetto racing and you don't want a lipo charger that can do A123/LiFe specific charging grab your self a cheap multimeter from Harbour Freight, a light timer, and a regular wall charger that does NiMH charging. hook up your 2cell A123 pack to the charger, set the light timer to turn off after x minutes...x dependant of the charge rate of your particular charger... and when the voltage reads 8VDC on the battery unplug from the charger.

Not the best route but like I said the A123 chemistry make them fairly safe from blowing up and the light timer will shut off the charger at about the time it would take the charger to shove 1100mah into the battery...

like i said ghetto racing...