Didn't see the last posts before I posted. From what was said the charger seems to be the problem. It just shouldn't take that long to balance a 6000mah lipo @ 5 amps.

If you decide to get another charger I highly recommend the Turnigy Accucel 6 http://www.hobbyking.com/hobbyking/s...arehouse_.html
Don't let the price fool you. We've had four of these for about 3 years with no problems except wires breaking from so much use.