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40 Life Hacks That Will Change the Way You Live
Bouncing Battery Energy Check
It can be hard to keep track of fresh batteries, especially when you change out one or two at a time rather than the whole set. One quick way to check the lifespan of a battery is by dropping it onto a table from six inches away. If the battery bounces and falls over, it is still good. If the battery rolls around and bounces a lot, it is likely almost dead.