Life hack: How to test your batteries

Do you have old and new batteries lying around and you aren’t sure which is which?

To test your batteries all you need to do is find a hard surface. With the negative end down you simply drop each one individually.

This should be done from approximately 10cm above the hard surface. If the battery makes a solid sounding thud and remains standing it is charged. If the batteries bounce and fall over they are most likely dead.

Via Peta Pixal