I can't believe I didn't know about this before!
In case of an emergency, you don't want to have any doubt that your necessary battery-powered devices are ready to work the moment you need them. But most of us don't have a meter to help us test our AA and AAA batteries, which means that it can be hard to verify that they'll be reliable when it counts. Luckily, there's an easy way to tell if your batteries are good to go… and you don't need any kind of special equipment.
This trick is so simple, it's a wonder it's not common knowledge! The last time I saw such an easy life hack using a battery was when I learned how to make a firestarter using just two small objects. I think this technique would also be super useful for when only one of the batteries in the remote goes dead, but you don't know which one to dispose of. Best of all, it's perfectly safe, meaning you don't need to risk injury like this person did when they broke their phone battery with a knife.
More people need to know about this easy and effective trick to test their batteries. It's a huge time-saver and, depending on the situation, it could also be a life-saver!
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