AC300 B300 charging issue

Hello, I have the ac300+B300 for about a month now and recently after managing to graph it I have noticed that the charge is uneven but over 80% there is a rapid transition. The calibration shown in the graph was performed for 2 consecutive days but the situation did not improve. Charge from the mains at about 400w with no load and AC e DC output off. EU version. Thanks.

Hi @BogNik , This is normal, because when the battery is almost charging full, the single battery pressure difference will be larger than the voltage of usual power.

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