Create a Lemon Battery
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- Опубликовано: 18 сен 2024
- Purchase: hilaroad.com/vi... Creating a battery from a lemon is a common project in many science text books. Successfully creating one of these devices is not easy. This video demonstrates how to construct and use a lemon battery to light an LED and operate a calculator.
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Your comments are correct, 2 parallel groups would be superior. LED's don't behave like a normal resistive bulb, they require a minimum forward voltage before they will conduct.
Typically in the range of 1.65V to 2.2V, any voltage less then this and they will not conduct (0 Amps) - increasing voltage creates current.
The lemon batteries create another problem, they have a very high internal resistance which limits current.
Thanks for your comment. We have a somewhat special circumstance here. LED's don't behave like a normal bulb, they require a minimum forward voltage before they will conduct.
Typically in the range of 1.65V to 2.2V, any voltage less then this and they will not conduct (0 Amps) - increasing voltage creates current.
The lemon batteries create another problem, they have a very high internal resistance and, as you measured, the current available is in the low mA range.
how long does the power last?
The point is that a lemon provides the circuit even with a huge internal ohmic resistance, thus the reported voltage value is correct only because the measrumement device doesn't need a sensible current to measure it and it does not allow the current to flow along the series.
But the very time you inset a load on the series, allowing the current to flow along, the internal resistance lowers the available voltage for the load (i.e. the LED); thus actually the effective output voltage is smaller.
This is so amaizing I can't believe it! I don't know why they didn't show us something like this at our physics class, but nevertheless thank you for making it possible for me to see something like this!
Congratulations on your 8 Honors for this video, Hila! Your videos have taught me so much!
Thanks for such an amazing video. You make it so easy to understand and you go slow to make sure people can keep up. Very informative and great vid!!
I never thought I would be watching somebody make lemon batteries on summer vacation. what's more surprising is that that is really cool. I am going to go check out the vinegar battery now!
this is so great. i just love science. this explains so much. thank you.
at first i thought what a waste to have four lemons to light one little LED....but toward the end you mentioned you can slice one lemon into 4's..now that's SMART Science. Very Cool.
Wow, lemons! No wonder folks put them in Corona beer and alcoholic beverages: it gives them jump!!
Seriously, a wonderful and innovative view into a complex field. Thanks, Hila!!
you have a warm, calming voice
great video!
this invention can change the world...It's incredible!!!
It's about time that someone put something educational on the front page. I swear I was feeling my IQ drop every time I would see the front page. Great work! Keep up the DIY home labs.
This helped me alot for my chemistry project! Thanks!
u have a calming voice lol u would be a much better science teacher than mine
This was awesome! If I'm ever caught in the wild with four lemons, four pennies, four nails, wire, and an led light, I will be able to see my way out of the jungle. Thank you for this valuable information.
that was actually interesting. I used to watch Mr wizard... this brings back memories.
Today I was just told I had to do a Science Project on Static or Current Electricity. And I decided to make a Lemon Battery after my mom suggested it. But hell, I did not know how. So I googled it and found this video. Thanks for this! Now I just have to go find some lemons... a few nails... a light...
Invun
this could be a new energy drink! Thanks for your explanation. I'm energized!
omg this guys voice can put me to sleep its so soothing...
wow..amazing...simple stuffs like lemon, penny, and a nail but with great contribution to our natural power...kewl
Cool. In my town, a lemon would cost more than a battery!Batteries are so much more convenient to use too.
"When life gives you lemons, you clone those lemons into super lemons."
I am curious as to what happens when you run the lemons 'dry', would they taste any different?
Good video, but I would like to point out one thing: by connecting the lemons in series, you are NOT increasing current: you are increasing voltage. You can check with an ammeter and see that 4 lemons in a row gives the same amperage as one. (I got about 0.3mA). If you connect them in parallel, you would keep the voltage at 1V but quadruple the current (same V, more A). Your LED will light up better that way.
thanks for posting this. it helps a lot. im doing a research about battery using calamansi juice and i found this. its great
The battery is only there to give that initial jerk to the engine during start up. You could start the car with the lemons and maybe use fryer oil for gas (It is possible)... make an engine like that and you'll be praised by millions.
you can do the same thing with vinegar, thin paper towels, nickels and pennies. I did it for a 7th grade science project
wow this is best to watch whenever i want to sleep!!
he sounds like my english teacher
This is cool, and explained really well. I did something similar in elementary school, but nothing like this complex.
my friend and i did fruit batteries for our science project in 8th grade. :] and we used this video. we actually learned stuff from it! haha. awesome.
thank you very much. this video helped me a lot in our investigatory project.
I re-rigged a string of christmas lights to connect every lemon in a lemon tree and ran a dishwasher. Oh wait. No I didn't.
jeez, I actually learned something today, really good video and very well narrated... Excellent 5 stars
Man the music got tense when he hooked up 4 lemons. I thought all of a sudden the camera was going to pull back and then a disco ball would descend and David Hasselhoff was going to show up on the scene running in slow motion from a explosion.
Yes, so do limes and oranges. For maximum efficiency, make sure the coin and nail pierce the same segment - that thin skin around segments cuts the current.
I agree, this is way better then school, he goes so slow and explains everything, its perfect
Way cool! who knew that a simple lemon could be so useful.
This is amazing! I never would have thought a simple lemon, nail and penny could be used to create a battery. Will it work with an orange or lime too?
very well explained, it kept my interest all through the video
So, now you know what to do with your mp3 in a desert island !!!
I liked it
Wow - this had me rapt the WHOLE way through
Amazing stuff
thanx it really works and it help me a lot in my schools projects................
That guy has got a nice, soothing voice.
this video is helping me with my science project right now
Attention you bozos labeling this video as "boring", "yawn", etc. It's highly likely that that your ability to view things such as this on your screen is the results of the work of people who, in their youth, found stuff such as this to be extremely interesting and informative. My 5 yr old grandson's amazement, and question he asked, when I showed him this experiment (real, not the video) gave me an immediate clue as to what his interests a potential might be in his future.
when life gives you lemons....connect them to calculators xD
This is cool, but I wish somebody would post a video like this to show us how to make "Bagdad" batteries. I heard about them before, then saw the Mythbuster's episode about them, but they weren't really clear on the construction.
"Bagdads" actually have some practical applications.
Four lemons in series barely lights an LED. Fully lighting an LED would probably require 6 banks of 4 lemons (in series), connected in parallel.
I'll try to find the time to work this explanation into the video.
That was great, i have to give you credit for that, you made a calm easy to understand video, very good :)
A larger surface area on your electrodes could increase the output current of each lemon, although I am curious to see what the impedance is for a single lemon. Might be more efficient to put the lemons in parallel, and lower the total impedance of the battery. Putting them in series adds their resistances together, so yes you get more push (voltage), but the current path is more resistive as well.
so you can cut up a lemon so it represents 4 lemons?
awesomr light saving teqnik
No, It does not decrese the voltage by splitting the lemon. The chemical reactivity of the metals (the difference) determines the voltage. But with less amount of acid (by splitting) will only result in less time of operation of the battery.
I have been running my house off of lemons for years. It is natures best kept secret!
Very interesting, thanks! I hadn't thought of the minimum voltage for LEDs. I didn't have a LED on hand so I was just going by the readings on the multimeter...
WOWEEE!!!!!!!!! Thrilling stuff, i really didn't see that coming. I wonder how many bananas it would take to power a small hand torch? I'd love to know.
Lemons in series! I love it.
Did this form a project in school. Pretty cool.
I love how he says battery.
THIS VIDEO IS FREAKIN HILARIOUS!
This has less to do with the lemon (or potato, etc) and more to do with dissimilar metals - acids may increase the voltage difference, but plain water got me 0.6V when I tried it right now, and if you make a "pile" of multiple + to - connections, you make higher voltage potential. It's like drawing on the energy of smelting the individual metals, which is why you can get energy out of an aluminum can - by returning it to a lower energy state.
Thanks for the explanation this is my Science Fair project for school! :)
I did this stuff in the 70's!
lvwarren,
you're right about the forward voltage.
But the 4 lemon battery had a potential of 3.54 volts, not 0.885. See 4:37 in the video.
this would be great, if it weren't for the fact that it costs a ton more to make a lemon battery than to find some. but who knows, maybe when the world goes all Road Warrior on us, this video will save our lives.
We on Zetar IV in the Andromeda star system salute you. Execept the lemon should never be quartered, it should only be wiziepidoloded.
Why if there was enough voltage, more than an AA battery, did you have to add more lemons? Why was the current low or weak? What makes 1 battery beat 4 lemons? Thank you for your response.
Because voltage and current through a diode are related in a so called volt-amp characteristic and you can't have high current when the voltage applied is low (i.e. the resistance of a diode is not constant and when voltage is low, resistance is high -> current is low).
so how many to charge an ipod?
I haven't tried them but I am sure they will.
This is a good one.
If we connect two coins and two neils to the same lemon and connect in series, will it work as two batteries, without cutting the lemon?
oh yeah, you have to have a certain amount of voltage across the diode in order to forward-bias it so that the current can easily flow. I forgot about that.
I never knew that.... Thanks for posting this!
I did this in a science fair once...Also baking soda and water (i think) worked. and a couple other things
the concentration of citric acid won't affect the voltage of the half-cell reactions, just the amount of current generated.
wow! thats very interesting, i also didnt know that a lemon could be made into a battery.
i put 20 lemons under the hood of my car....now it really is a lemon
divide by 4 lemons to get the per lemon voltage potential. this corrects for the 4 lemons being in series.
very interesting and thought provoking
what if you get stucked in a desert island and you need some extra lemon baterys for your coconut mp3 player? think about it :P
When life gives you lemons... make a battery and play with an LED :)
when life gives u lemons u take those lemons and u make a batte
ry
More videos like this should be featured.
You know if you have enough lemons in your car and you get stranded at night without any light, you can simply make a flashlight with a pencil and some lemons....
You Are awsome, you have a cool voice that you could do movies with
Lemon Battery, with your host, Mr. Excitement.
v v nice Mr. Scienceonline, Thanks for sharing
by right a voltage of 1 volt should be able to light up the led. i suspect the each lemons cannot output enough current. perhaps connected the 2 (maybe 3) lemons in parallel. This way the current load is shared by the lemons and maybe you get a brighter glow. havent tried it out though.
thanks, now i know if i ever run out of batteries i can just carry a bunch of lemons around
this is awsome... FEEL THE POWER OF THE SOUR LEMON!
congrats on being featured. u deserved it.
i found this video relaxing o.O the music in the backroudn man... make you fall asleep..
i'll never look at lemons in a bad way again...so life, give me more lemons! bwhahahaaha.
Now what we do here, is collect about 9 or so lemons and connect them in series to a disposable camera flash unit, and use it as an environmentally friendly taser.
price of lemons, penny's and nails-$5
price of a 9 Volt battery- $4
Walking around with a bag of lemons to power your iPod- Priceless
That would be under 1W/lemon. Getting an LED to shine like that consumes about 2mW to light, and we're using no less than 4 lemons. That means like 0.5mW/lemon meaning you'd need 600,000 lemons to get the 300W required. You'd need a whole orchard to run a single computer.
Those red LED usually function between 1.6V
The lemon current is so low you can't see the light the LED gives off. He should have conected many lemons in series and used more surface area for the metals.
Yes, Swiss Army knife! Seems like McGyver is at work! ;-) I also know this chemical reaction and the basics in electrical engineering from school therefore it is not new for me.
I want more videos like this...thanks
cool. ill never have to buy a battery again as long as i have my lemon trees!
Very informative....Your a professional!!