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Battery Life
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Minnesota teenager Ethan Manuell didn’t expect to make a major medical breakthrough when he was asked to make a science fair project. As he told USA Today, his main concern was getting a good grade. After receiving the assignment from his eighth grade science teacher, Mrs. Omland, Manuell started tinkering. Using materials he had at home—including old battery-operated toy bugs and the batteries from his hearing aid—he discovered a way to extend the lifespan of zinc hearing aid batteries by 85 percent.
Some hearing aid battery packages instruct users to remove the plastic tab on the back of the battery and let it sit for one minute. Manuell further tested this suggestion, allowing the tab-less batteries to sit for various amounts of time before testing their longevity in his vibrating toy bugs. He found that five minutes was the golden length of time needed to achieve maximum results.
The information is shared in doctor’s offices today. By using Manuell’s trick, hearing aid wearers can save an average of $70 a year on batteries.
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Now I have to figure out what to piss away that $140 savings on. 
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The descent of man ~ Nixon, Friedman, Reagan, Trump.
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