No, because there is a voltage regulator circuit inside the scale, when it is about to affect the accuracy, it will automatically shut down in advance, and there will be no deviation because of no power, the electronic scale is calculated according to the change of current and voltage.
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And there is a pressure sensitive chip under the electronic scale tray, after the person stands up, the resistance of the pressure sensitive chip will change with the weight, when the current is stable, the electronic scale will show the calculated weight.