Using a multimeter is one way to determine if your battery is still good or not but most people doesn’t have this kind of device which is why we always experiencing the struggle of battery testing. What we always do is the swapping technique or banging the battery on different surfaces hoping that it will work again. Worst case, we mixed the good ones to the bad ones and accidentally throw it in the trash. Is there any other way to test them?
The answer is YES and it will take you only 2 seconds to do it. The video below will show you the difference of a good battery and not. Genius!