I've owned this charger for a few months now and when I first got it, in 3.7V mode, the left channel would generally always charge cells to 4.15V while the right channel would always hit somewhere between 4.19-4.21. Now that I've been using it as my primary charger (I use a lot of LiFePo4 cells), it's seemed to have balanced itself out and at both charge rates and both voltage settings, and now both cells always come off the charger equally balanced - 4.22V in 3.7V mode and 3.35V for my LiFePo4s in 3.2V mode... weird huh? Has anyone else with this charger noticed this behavior???? I'm scratching my head on this one!!!!
Shao