Weight scale out of power will not be heavy, because there is a voltage regulator circuit inside the weight 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, electronic scale is based on the change of current and voltage to calculate the carrying weight.
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.
The same weight, because the electronic scale has nothing to do with weight