The trick that shows how to distinguish batteries filled with waste?

Every now and then, you'll have jobs with different batteries. When it comes to changing them, you will hardly be able to shoot which is still full, which has been completely spent. Thus, controlling them is almost impossible, since very few people have the equipment needed for [...]
Thus, controlling them is almost impossible, since very few people have the equipment needed to do so at home, and it transmits thegraphy.
However, you can forget this problem, since a video explains some effective methods to control your batteries.
As you can see in the following video, if you drop the battery from a small height, it will focus “on foot” if it already has batteries. Well, if there's no battery, she'll fall.
Remember this simple trick and you'll never mess your batteries up with your spent batteries again.
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