Determining if a battery is no longer useful can be tricky. The batteries with indicators on their sides are especially hard, since you need the thumb of an elf and the strength of a bear to push the little button and display the gauge. Of course, the best way to test a battery is with a voltmeter, but not everyone owns one; if you do own one, you likely won’t have it handy when you need it. Luckily, we found a super simple way to test a battery’s power in seconds. This trick works with any kind of alkaline battery,…
What You Can Do With Normal Batteries In Just 2 Seconds Is A Genius Life Hack
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