It's About Liberty: A Conservative Forum

Topics => Science, Technology, & Medicine => Topic started by: oldcoastie6468 on January 31, 2014, 07:33:52 AM

Title: Battery Testing
Post by: oldcoastie6468 on January 31, 2014, 07:33:52 AM

I never knew this. (I have no idea of why I couldn't paste it like I usually do.)

http://www.youtube.com/watch?v=Y_m6p99l6ME#t=69] [url]http://www.youtube.com/watch?v=Y_m6p99l6ME#t=69 (http://[url)[/url]

Title: Re: Battery Testing
Post by: Glock32 on January 31, 2014, 10:35:04 AM

Here you go.  The "#t=69" at the end of the URL was the problem.  YouTube uses that to jump to a specific point in the video, but the forum software doesn't understand it so doesn't recognize it as a YouTube link.


How To Test a AA battery, Easiest Way For Any Battery Fast, Easy! (http://www.youtube.com/watch?v=Y_m6p99l6ME#ws)

Title: Re: Battery Testing
Post by: AlanS on January 31, 2014, 10:50:10 AM

Can't get youtube at work. I'm gonna need somebody to 'splain what's happening. ::bashing::

Title: Re: Battery Testing
Post by: Glock32 on January 31, 2014, 11:05:36 AM

It's a test that claims you can tell a dead battery from a good battery by dropping them on their negative end onto a hard surface. A dead battery will bounce, a good battery will land with a solid thud without bouncing.

Seems plausible enough I suppose. A fresh battery still has the two chemicals segregated, so maybe the negative end is more dense than it will be after the battery has discharged. I think the electrolyte also hardens on a discharged battery, which might explain the difference in bounce.  I'm going to test it out later :)

Title: Re: Battery Testing
Post by: oldcoastie6468 on January 31, 2014, 01:09:11 PM

Thanks, Glock32. And thanks for the 'splaination.

Title: Re: Battery Testing
Post by: Glock32 on September 07, 2014, 10:42:20 AM

Here's another video that confirms this test is legit, and also explains why.

Why A Dead Alkaline Battery Bounces! (http://www.youtube.com/watch?v=qrGV7zKEdtU#ws)