I just learned of this experiment and tried it a few times. Try it yourself and see what YOU think!
Sometimes I go digging through myjunk drawer and find a battery, but then ask yourself: Is this a new battery? Or is it an old battery that I just shoved into my junk drawer instead of discarding?
To find out if you have a fully-juiced AA battery: Rest the battery upright atop a table, pick it up with two fingers (not too far off the table) and then gently drop it. “New batteries tend to stay upright,” the“Used ones tend to bounce and fall down.”
Does this hack really take the guess work out of gauging your battery life? I tried the experiment with an old battery and a new one and did it about 5 times. Sometimes they both would fall...but more times than not, the new battery would land upright and the old battery would fall over.
It is worth a try if in doubt.
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