Battery Bounce Test - tell full from empty by dropping it!
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- čas přidán 31. 10. 2017
- Somebody told me about this and I thought it must be a joke. This can't be real... it's just another hoax. But then I tried it. It really works! No matter how crazy it sounds, you really can tell a full AA alkaline battery from an empty one just by dropping it. The full battery doesn't bounce, the empty one does bounce.
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yOuR voICE is AMAZing duDE
Probably a gypsy.
The good sound quality really helped me find the difference.
Your accent made my day :DD
I was literally about to comment that until I saw that others had the same opinion LMAO his accent though.
Luiggi.
@@rondj1965 no, i' m italian and this isn' t italian accent
I hate the way the dude talks
For anybody wondering, it is a czech accent which is actually my native language. I realised it later and some of us speak like that though this is really strong one.
Indeed, you can even tell by the sound when you smack them with your nail. Full ones go like "thump" and empty ones "ding". It's connected to the electrolyte density inside. It changes during discharge. :)
If you take a dead alkaline battery and slam it gently on the floor(hard surface) horizontally, you can get a little extra out of the battery. I learned this in Haiti while on a medical mission trip 3 years ago and we had some batteries go dead in one of our instruments at the end of the trip, the local Haitians call it the Haitian recharge. Got us through the last day and I use this at home now to get more out of my alkaline batteries. Just when you think they are done, give them the Haitian recharge!
Also electrolitic capacitors will have bigger capacity when you crush them little bit, not to much, it will cause short circuit.
Let me try this real quick in my dead battery wireless mouse ill let you know if it works
Yep it works everyday i learn new things thanks sir
Warming them up gently seems to squeeze a little more out of them too!
Holy shit it worked thanks
I appreciate the high production quality of this video.
I second that
I third that
I forth that
I fifth that
I sixth that
what you know. now we can get rid of all our multimeters. does it work with car battery?
WV591 i wish
Yes but they can only be properly tested by dropping them on your toes
Yes, with car battery too. But someone has to drop it on ur head...
Make sure to drop it (watch out for lame joke) on a Nokia. (I'm in a really light hearted mood at the moment...sorry :P).
Next - drop a Tesla to check battery status.
Great stuff...yes I have known about this for sometime now, but can never remember which is the bouncing one...thanks for clarifying!
If its bouncing (being energetic) it has no energy. If it has energy, it won’t be bouncy and energetic because it has enough.
Not the most scientific way to remember but fun none the less
No it’s scientific
Full means heavy
Very nice explanation. Watched it without an audio, still worked.
The audio makes a big difference.
Came for facts, stayed for the dedication
Nice ! love your videos
TYSM, today my mouse started to have difficulties with moving the arrow and i was wondering if it was broken. Now that I tested it, the batteries really bounced
How about a rechargable battery?
what a time to live in to learn about such random stuff
This is cool. Now I can test batteries without a tester.
Seems to work just as well with AAA, C, and D batteries. I wonder if it works with 9 volt batteries.
just use your tongue to test 9v ones :)
Hey your accent is so funny/pleasant to listen 😉 it goes really well with the quailty content you produce! 👍
hackeritalics haha 😂 not at at all, I gave credit instead. Sometimes it happens..we read fast and misinterpret small parts/emojis in the text. cheers!
Italiano gone wild, love the accent man ❤😂
Man u funny as hell. The video is useful too
Thanks so magical
I heard about this too and thought it was crap but then I came across some videos like yours from respectable CZcamsrs. I will try it myself some day but for now i believe. What I would like to see is someone explain the exact chemistry and physics.
I guess that the chemicals in it somehow harden or soften as it discharges...
I think this happen because the used battery will have more gas in it being discharged from the chemical and somehow make it less dense?
Time permitting later this week I will investigate to see if anyone found out more details.
Marker comment
czcams.com/video/qrGV7zKEdtU/video.html
Decent video here where he splits it open and determines its because the gel turns to a solid as the battery is used up.
A more detailed Harvard test shows the effect starts slightly at 70% remaining charge. Maximum bounce occurs by 50% charge and continues the same till end of life.
This doesn't work with rechargeable batteries. They bounce no matter what.
What about putting the empty battery and the full one on the weighing scale is there any different??
Random variation between each piece is way more significant.
Good job! Interesting.
good experiment
This gives me life
Love your voice!
Unbelievable..! I learned something today, thanks..
I have a 1600 mah battery and my charger output is 2.8 volt and 200ma
How much time it would take to charge 4batteries at a same time? Pls tell fast
Your voice sounds ✨cursive*
Good to know:)
YOU ARE A GOD MY MAN
Nice idea...liked it....
Thank you!🎉❤
I quess battery swells a little while discharging. So bottom is is not perfectly flat anymore that causes bouncing?
I heard that this test works only on Alkaline cells. But not on: Lithium, rechargable NICD, rechargable NIMH, zinkcarbon.
Yep, only for alkaline. For rechargeables, you simply put them in charger and when it says full, rechargeables are in fact full
Thankyou so much
with fresh electrolyte (fresh new battery) the battery is more denser & will weigh more, because of the electrolyte.
When the electrolyte within the battery cell dries up, it becomes less dense & loses weight, plus all the gas build up will also decrease its weight, gas weighs a lot less than electrolyte.
Example
if you put a little water in a balloon, then blow it up, then tie it, then just blow up another balloon & tie it without adding water, then do a Vs drop test. The balloon with water in it will have less bounce when it hits the surface, compared to the balloon with no water, it would probably bounce off the surface & then completely clear the surface heading for the floor, than the water one, which would boing, a little, then roll around on the surface a little bit.
I thought my son this and he never believed me so i had to show him this video
super wow, i love you my european
Good job.
Tohle je geniální :)
The energy is heavy
Luv your accent bro!
I set the playback speed to the 0.25 setting, went to position 1:31, and recorded the audio with Audacity software. I then edited out all sounds except for the first bounce of each battery test. Then I zoomed into the resultant waveforms, and there was a clear difrrrens (difference) between empty and full batteries. If you listen carefully you can even hear a slight difference in pitch. (Any classically trained musicians on here to back me up?!) But it could be just down to the position of the bottom support for his kitchen counter-top...
When I was a kid I used to think that flat battery cells were lighter that full ones.... maybe I was on to something! Time to route my precision weighing scales. (Cheap Chinese cells seem to have thinner wall construction, so I better allow for this.)
@DiodeGoneWild Do some bounce experiments on rechargeable cells!
I'm not a musician, but I can attest to that. An empty battery seems to make a higher-pitched noise than a full one when it hits a hard surface.
I'm a musician, and yes, there is quite a clear difference, even for the untrained ear.
This trick looks like it will get me some free drinks at the local bar, I hope it is real, the last guy who tried to hustle free drinks doing the old shell game was caught holding the pea under his hand, they took him in the back room where a hammer is kept, and now we call him "the claw" 'cause of what they did to the offending hand. They advertise themselves as a family- friendly bar too!☺
I learned this in jail, also learned if you bite down on a battery if it's soft that means it is new, rock hard means it is dead.. just dont bite too hard
A kitchen desk?
It didn't work for me ... they both bounced
😂That's amazing!👍
Your videos are awesome man. You're very smart
Doesn't work with car battery, dropped it and now my foot hurts
I've done this and weighed them
the weight stays the same as well.
I think it's to do with electrons in the batteries
chemistry making the cell more dense when
charged, think of dropping a full bottle, and
empty of water, the empty bottle bounces.
Electrons return into the battery via the positive terminal, they don't go anywhere. If you actually tried to deplete the electrons, no current could flow!
apparently the material inside hardens when discharged making them bounce
The chemicals probably move and change the physical resonant frequency of the cell, no weight is lost but the chemicals have been moved around.
It worked, thanks for telling us in English
“or can yuuuuu?”
I used my dead battery on wood. Dramatically bounced off (I caught it before it fell)
Full battery didn't stay up
Are u from Wadiya ?
Очуметь!!! Спасибо.
YES TYSM!
I tried with a car battery got a hole in the flor. Did I something wrong? 😁
No bro, but definitely there's problem with your battery
Same with people. The ones with no brains bounce higher when dropped.
😂😂😂😂😂
Está bloqueado por falta de respeito.
No canal CN Motos
It seems to work, but why?
I think there should be a very slight difference in the convexity of the bottom surface between a charged and a discharged battery.
Nice
Turn the batteries upside down and do the test again. Batteries work by transferring material from one pole to the other. Someone posted the weight is the same for both batteries good or dead.
"during a discharge of electricity, the chemical on the anode releases electrons to the negative terminal and ions in the electrolyte through what’s called an oxidation reaction. Meanwhile, at the positive terminal, the cathode accepts electrons, completing the circuit for the flow of electrons"
The center of gravity most likely shifted to the top of the battery. Would be interesting to see what happens.
Try with a rechargeable battery before and after and drop top and bottom
Best explanation thus far.
“If its empty it will bounce” ig your mom was empty last night 🤷♂️😭😭
hm. Interesting. Thank you!
I just wanted to know this at night XD
and why that happens xd
such a funny accent
send a memo to Castnoo. lol
For rechargeable batteries also ? :-)
And why?.
Part 2 ?
It doesn't matter now. Lost the battery under the bed while doing the test.
😢😅😂😂🤣😂😛😜😝😛😜😝😛😝
I didn't believe this either!
The most italian accent i have ever heard
I think you'll find the empty batteries are slightly lighter too.
If this is for relativistic reasons, it is not measurable. If something evaporates from the battery, it may be measurable.
If they're not much lighter then why does it bounce. Try comparing the weight of a new full battery with a completely drained/empty battery of the same make on a kitchen scale. I think the drained one will be a few grams less.
Simon Tay whether something bounces or not, cannot be accounted to mass alone. A piece of paper is much lighter than a bouncing ball, but a piece of paper definitely bounces less, right? It usually helps to think of an extreme example to discover whether your direction of thoughts could be correct ☺️
That was a known fact even before I was born...
Not by 95% of those of us who are watching this! Pretty epic if you ask me. :D
No one starts out knowing everything.. we all have to hear it/see it at least once!
multimeter Na hone bhi ek baat h.
@@hackeritalics Same goes for the busted myth, where leaving a lead-acid battery on a concrete floor will discharge faster than the same battery insulated from the concrete floor with a block of wood.
The batteries!! So many batteries!!! Where the actually dead!? I'll never know! And all I had to do was drop them...
OW... My life!! It hurts...
Do the batteries weigh less when they are drained?
Nope!
Try a car batteri!!! 🤣🤣🤣
Interesting voice tho, i thought it would be boring
hello, umm i umm i umm dropped my battery JUST KIDDING LOL LIKE IT
This dude talks like Roswaall from Re:ZERO
What???
Is that an Italian accent?
We did this in prison LOL
My only complaint is:
Minion batteries
WOW
nice voice
At first it seems unreal. But when you try it and you see it working, you think about batteries having some physical material that chemically are expended to drive an energy releasing process.
And there are after all quite a bit of energy in such a battery.
no the friends
Are you German?
M8 what are you saying
if you spoke english then you'd know
👍
Minion battery
I love this 👌🏾
Hi
Lovely accent.
Wow😀
Well einstein was right, e=mc2 😂😂👍
čech?