First charge on one of the packs. I didn't want to use the 10 amp setting first time out, but at 6 amps the cells are up to 3.65, 3.67, 3.67, and 3.65. Still holding at 6.4 amps for a while. How long do the cells hold at the high current at full volts? I would expect the current to start folding back soon. I'm going to disconnect the charger if it doesn't back off soon. Still under 3.70v