• Question: Why do batteries turn off when they are not plugged in?

    Asked by to Thomas, Saiful, Piers, Olivia, Meggi, Laurence on 12 Jan 2017. This question was also asked by .
    • Photo: Meggi

      Meggi answered on 12 Jan 2017:

      Batteries are only active if a flow of electrons is enabled. Inside the battery, the ions move between anode and cathode. But these ion will only get reduced or oxidized at the electrode (key operation of the battery) if the electrons can move between the electrodes.