Newly bought dry batteries, put on for too long, do not know if there is no electricity? Many people will encounter this situation, but not everyone has the instrument for measurement. Recently, foreign user kipkay has uploaded a video on Youtube to teach people how to use simple methods to test.
According to the video display, the user only needs to hold the positive electrode up in the hand and gently drop it to the ground. If the battery can stand normally, then there is still electricity; if it can't stand, the electricity is basically consumed.
Kipkay indicates that the above tests are limited to commonly used alkaline dry batteries.
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