neat way to test batteries to see if they have a charge.

[grunt soldier]

I haven't seen this before. Pretty cool. low tech way to tell if your batteries have juice or not.


[video=youtube;Y_m6p99l6ME]http://www.youtube.com/watch?v=Y_m6p99l6ME[/video]

 

[cyprant]

Very cool. Thank you for sharing.

 

[Bunnykid68]

 

[Manatee]

Very interesting. It's amazing what different people will come up with.

 

[actaeon277]

Doesn't work for me. I call BS

 

[churchmouse]

Doesn't work for me. I call BS

He is bouncing it off a piece of tile. Tile is hard as Chinese arithmetic. Wood....not so much.

 

[Lucas156]

Interesting but just use a multimeter

 

[grunt soldier]

I did it on my tile counter tops and it definitely works. Yes a multimeter is much easier but this is a cool way to check if you don't have one handy.

 

[Iroquois]

A great trick to stump the electricians at the plant.....not as much fun as the tongue to the electrode trick. Word of advice....never touch your tongue to a 67.5 volt battery...don't ask how I know....

 

[sassy lassy]

A great trick to stump the electricians at the plant.....not as much fun as the tongue to the electrode trick. Word of advice....never touch your tongue to a 67.5 volt battery...don't ask how I know....

Let me guess... you tried it?

 

[halfmileharry]

Heck, it took me a half hour to check 6 batteries. I couldn't for the life of me get them to stand up. I'm better bouncing a Zippo than I am a AA battery

 

[Valvestate]

My guess is maybe the weight of all the electrons being on the bottom of a full battery, stuck the cathode and waiting to be reunited with the anode? For 9v it would probably not work with alkalines as the cells are stacked vertically.

 

[Iroquois]

Wow, it works....on a very hard, sturdy surface. Like the flat surface of a large vice, or a sheet metal brake. I will store this for future reference.

 

[Hohn]

I suspect this has almost nothing to do with weight.

I bet it DOES have a lot to do with the pressure internal to the battery. Alkaline batteries give off (or absorb) gases as they undergo electrochemical reactions.

That's why your older car batteries had vents in them.

Bad battery has built up internal pressure due to discharge (use). Hence, it is "bouncier."

 

[eldirector]

Nailed it ^^^^^^^

Notice the Pressure Expansion Seal.

Used batteries have a higher internal pressure. So, they bounce.

Ever see an old battery the "popped"? Same reason.

 

[Valvestate]

I suspect this has almost nothing to do with weight.

I bet it DOES have a lot to do with the pressure internal to the battery. Alkaline batteries give off (or absorb) gases as they undergo electrochemical reactions.

That's why your older car batteries had vents in them.

Bad battery has built up internal pressure due to discharge (use). Hence, it is "bouncier."

You tickled my nerdy bone. One thing, though. Most car batteries still have vents. At least the cheapies.

 

[King Matthew]

That's cool.

 

[atvdave]

I suspect this has almost nothing to do with weight.

I bet it DOES have a lot to do with the pressure internal to the battery. Alkaline batteries give off (or absorb) gases as they undergo electrochemical reactions.

That's why your older car batteries had vents in them.

Bad battery has built up internal pressure due to discharge (use). Hence, it is "bouncier."

Yep... pressure builds up to make it bounce.


[video=youtube;nwfFBUVxpac]https://www.youtube.com/watch?v=nwfFBUVxpac[/video]