This 1 Second Trick Will Tell You If Your Batteries Are Dead

Ever have a battery die on your flashlight, fish finder, remote control, or toy ray gun? Or maybe you have a handful of batteries, but can’t tell which ones are good and which ones are bad. You could go to your trusty old tool box and grab a voltmeter to help you measure the capacity left in each battery, but that’s just too much trouble sometimes.

Fortunately, there’s a VERY simple trick to tell if your batteries are dead. Just watch the clip below:

[h/t YouTube]

Seriously, so simple, yet so practical. Not too shabby..