Tattu Battery Charging

How much of a voltage difference is acceptable after balancing?

 Hey,  when you charge a 2S battery of Tattu professional UAV battery with your balancing charger, does it charge one cell to 4.2V and the other cell to 4.15V? Is that a normal-sized voltage difference? The player always meet the problem that when charging their battery, by the time the battery is done being flown (discharged). The stock charger that came with the Blade 130X have the same problem which my Thunder charger does (Thunder T610 is the model). What’s the point of having a balancing charger if it doesn’t balance it all the way? Here I will give some suggestions to you.

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