How do local action make the cell defective

Local action: local action is one such defect. The local action is the discharge of current by a battery even when it is not connected to an external power device due to the impurities present. Then when cell is not use, electric currents flow through these electrodes. Eventually resulting in the determination of the cell.

Hi, your answer is not correct. this is a cumulative  

You can find results and justify them? you can test your hypothesis