What voltage are you expecting? a 6 cell pack or a 4 cell pack. what charger are you using? what is the peak set at. Did you discharge them to 5.40 volts 6 cell, or 3.6volts 4 cell. before charging them?
Charge at 6 or 7 with a .02 or .03 cutoff you want around 130 degree's at peak,race,store with what's left in them, or fully charge them if you're not going to be racing for a few weeks, next raceday, EQ down to 4 volts and repeat procedure,even the newest best batteries are only good for about .1 to .2 at the very most on the track,and even at that one tap of of the wall and all that is null and void.
I'm deducing from your posts that you want to see the cells peak at a lower voltage. One thing you don't mention is what charger you are using. If it is a Competition electronics charger or any other that has the small voltage sensing leads then you might have a break in one of those leads. The charger will show a much higher peak voltage when charging with those not hooked up.