Do you always muddle up your used batteries with your unused batteries together? Do you always put batteries into your battery operated device and there is no power inside? Well, this tech life hack is here to help you so you don’t have to waste anymore time figuring if a battery is full or not. This test only works with AA, AAA, C, D or 9V Alkaine batteries.
To test if a battery is full or not, just drop it from around 2 inches high and after the battery hits the surface, the higher the battery goes, the lower charge it has. You can see the video below demonstrating the concept.
That is your tech life hack for the 10th of April and hopefully this tech life hack helped you, or it will help you in the future because it is quite handy!