I have a Hobbyking Quattro 4x6s Charger. I have had this charger for over two years, just started using it to balance my Lipo packs (before that I used a separate balancer)

Sometimes when I balance a lipo pack it takes a long-time for the balancer mode to stop, it will stay at .01 charge rate for a long time.

Other times, the charger will time-out before the pack has completed balancing. Is this normal? Is The Lipo pack being balanced the problem?