In
the above video, BuzzFeed demonstrates how 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,” says the BuzzFeed video, “Used
ones tend to bounce and fall down.”
I
did simultaneous battery drops to see if, like the video said, the full
battery would stand tall while the empty battery wobbled and fell over.
The first time, the batteries did just that:
But the very next time, I guess I didn’t do a good drop because both batteries fell over:
On the third try, the batteries again did as expected: the fully charged one stayed up while the other teetered and fell: