Imax B6 voltage display?

[SOS]

Hey guys. Since I've had my B6 clone charger I've been wondering about the current voltage display. There's a discrepancy between the main display and the individual cell display. For example, the main display may read 8.39-8.4v while the cell display reads 4.08v /4.08v which clearly doesn't add up. For anyone using this charger, is this normal? Why the difference? Thanks.

[RC10th]

I think it's "normal" and mainly due to lower quality cells or old batteries, they sit there nearly fully charged forever and take ages to finish or fail to "balance"