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!
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
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
I heard about this too and thought it was crap but then I came across some videos like yours from respectable RUclipsrs. 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.
ruclips.net/video/qrGV7zKEdtU/видео.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 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 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 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
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.
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
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'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!
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.
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!
@@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.
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.
It really works, we used to throw them at this idiots head and if he screamed then we knew the battery was good. If it just bounced off and he didn't notice then we knew the battery was flat.
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.
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 ☺️
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. :)
yOuR voICE is AMAZing duDE
Probably a gypsy.
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.
Very nice explanation. Watched it without an audio, still worked.
The audio makes a big difference.
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
Came for facts, stayed for the dedication
Nice Now I need to go through over 100 of them! I better get a box of wine. 😁 Thanks!!!
the accent and the minion batterys really made my day
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
what a time to live in to learn about such random stuff
This doesn't work with rechargeable batteries. They bounce no matter what.
I love your accent!! Also I wonder if this trick works on rechaegeable batteries!!
I thought my son this and he never believed me so i had to show him this video
It worked, thanks for telling us in English
Italiano gone wild, love the accent man ❤😂
I heard about this too and thought it was crap but then I came across some videos like yours from respectable RUclipsrs. 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
ruclips.net/video/qrGV7zKEdtU/видео.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.
Interesting voice tho, i thought it would be boring
Doesn't work with car battery, dropped it and now my foot hurts
such a funny accent
Your voice sounds ✨cursive*
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!
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 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.
We did this in prison LOL
Same with people. The ones with no brains bounce higher when dropped.
😂😂😂😂😂
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
Nice ! love your videos
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 :)
“If its empty it will bounce” ig your mom was empty last night 🤷♂️😭😭
Bruh WTF💀💀💀
It didn't work for me ... they both bounced
bad surface maybe
Unbelievable..! I learned something today, thanks..
Love your voice!
Man u funny as hell. The video is useful too
What???
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.
How about a rechargable battery?
Biggest fan of you :D
super wow, i love you my european
Luv your accent bro!
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.
This gives me life
hello, umm i umm i umm dropped my battery JUST KIDDING LOL LIKE IT
The most italian accent i have ever heard
YOU ARE A GOD MY MAN
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.
This dude talks like Roswaall from Re:ZERO
“or can yuuuuu?”
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...
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
I just wanted to know this at night XD
A kitchen desk?
Your videos are awesome man. You're very smart
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
Tohle je geniální :)
It doesn't matter now. Lost the battery under the bed while doing the test.
😢😅😂😂🤣😂😛😜😝😛😜😝😛😝
čech?
Thanks so magical
The energy is heavy
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.
Good job! Interesting.
I used my dead battery on wood. Dramatically bounced off (I caught it before it fell)
Full battery didn't stay up
good experiment
Nice idea...liked it....
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.
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
And why?.
Part 2 ?
Good to know:)
I think I see some deeefreeeens
hm. Interesting. Thank you!
Thank you!🎉❤
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.
Try a car batteri!!! 🤣🤣🤣
My only complaint is:
Minion batteries
I didn't believe this either!
It really works, we used to throw them at this idiots head and if he screamed then we knew the battery was good. If it just bounced off and he didn't notice then we knew the battery was flat.
HAHA! Even if it's just a joke that a tad screwed up. lol
Good job.
😂That's amazing!👍
IT WORKS!!!!
Well einstein was right, e=mc2 😂😂👍
send a memo to Castnoo. lol
and why that happens xd
Learn that in jail
what
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.
Minion battery
No deeefereeeeeenceee
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 ☺️
NO DIFFRANCE
Is that an Italian accent?
YES TYSM!
Thankyou so much
For rechargeable batteries also ? :-)
+DiodeGoneWild
Nothing even at all... I discovered that 15-18 years ago...
Nice
Don't work hard work smart put it in tv remote or ac remote😂
Lovely accent.
What's up with his voice. It keeps going up randomly