Here is the real thread on how to charge the A123 cells fast
http://www.rcgroups.com/forums/showt...=8#post8593235
I charge them at 10+ amps. I start at 15+ and it tappers off as it goes.
You must use 3s or 6s packs though.
I balance them before and after the first few charges.. Then they are pretty good check them every now and them and you should be jsut fine. They take a good lickin and keep ticking.
Highflier