Thursday, 27 February 2014

Easy alkaline battery test: no tool needed

You have no meter and want to find which of your Alkaline batteries are fresh. Just use this brilliant test and find out:

 

This test only works with Alkaline batteries as it relies on their chemistries. As they discharge, the chemical reaction inside releases some gas (which makes them bounce). This test however comes with its limitations: while fresh batteries don't bounce, bouncing ones might still have significant juice inside.