Stick a meter on them after they are charged. Post up what the results are. Its the voltage in the pack thats important, not what the charger says it has put into the pack.
My new Ep4200 cells typically quote on the charger putting in around 4000 however i always stop early as it prolongs the life.
My charge method always includes discharging before charging and equalising on a smart tray. This will gain the maximum readout on a charger, but the voltage would still be high regardless.
TBH max voltage is not always necessarily required. On 4wd running brushless i can get away with running a final on 8.5v, (cells will happily go to 9v if i want to ) after running i can still achieve 8v still left in the pack.
Hope this helps.
Col.
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