Cool, easy test for AA batterys

[Willowbilly3]

http://www.youtube.com/watch?v=Y_m6p99l6ME

 

[Todd]

interesting

 

[cycledog]

That's how my mom used to see if I was awake.

Cool tip.

 

[bruno]

You can test a 9 volt battery by sticking it on your tongue!

 

[jmlcolorado]

I tried it with AAA's with no success [S
And the ones I THOUGHT were bad, tested okay via this test.
But they all reacted so similar, it was hard to tell.
Anyone else bored enough to try it?