Omg man, you just built a time bomb. Those bms balance wires between two layers of cells, under pressure. Shorts between balance wires is the most causes of a lithium cells run in fire. WHAT A MESS.
@@AllAroundTube50 Some people just use what they have, not everyone has a spot welder. I soldering all my connections to around 300 batteries, has been working great for 4 years and the cells only need balancing twice a year.
@@jvlsgames4446 he dosn't know why but I'll tell you. He's not sure the cells in parallel are the same capacity. The smaller capacity cell will overheat under load.
and guys from a battery designer and builder here,soldering a lithium cell is quite ok ,as long as your soldering skills are professional level ,and have the right tools ,dremal to use mini wire wheel, and have killed spirit flux and an etch flux and correct cleaners ,and a magnetic heat sink that we put straight onto the soldered joint to instanly strip the heat out
we also use high wattage soldering irons usually 100 watt ,they allow you to get the solder down and take much much faster than a lower wattage iron ,with the lower wattage you have to heat the cell longer to build the heat up
How do you know the cells discharge rate ? Or are you basing all the parallel cells at a lower discharge rate, the purple ones can discharge at a max of 10A while the others may only be 5A or lower, if that's the case the purple cells will force the others to discharge at a higher rate creating heat and eventually cell failure
WRONG! They will all pull proportional to every other cell in parallel group.. that would only be the case if the was a 4-6 p battery with low amp laptop cells and say something like a 25r 20 plus amp cell... Otherwise equal distribution and will pull exactly equally
Lil. Mmmmmmmml .mm. m.. L. K My. M. M. LMAO; nil. Mmm My. NM. LMAO.mm.lmm.kommmmlmkmmlmmmm..mm. M. M. M. My; mom; m. M. Mmk .mmkmmmmmmm; mmmmmmmmm.. Mmkmm; my.. Mommy. Mmmmmkmmmk; my. Mmkmm. Kmmmmmkmmmmmkm.. Mmkmmlm. Mmkmmmommmmm;.. Kmmmmmmmmmmmmmm.. K. Mommy; m; mommy. M; k. Mkmk. Kmmkmmmm. K. Mmmkmmkmmmm Km; mommy; m. Mmmmmkmmmkmkmmmkmm. M. Mmmmmmmkkmm; McKenzie. Mommy. Kim. Kmmkmmmmm. Mnmmmmmmm; mmmkm. Mkmmmmkmkmmmmmmmkkmm. Mmmmmmkmmmkkm. Mmmmmmm;. M.. Mmmkmmmmmmm; k.. Mmmmmmmmmm. Mum. Mom. Mommy. M M. Mmmmmm. My. Kmmmkkkmk. Mmkmmk. My; mkmkkkk. McKenzie. Kmmmmk. Mm Mmmmmkmkmmmmmmmm. Komkkmmkmmmml Kokmmmkmmmkkmkmmm; kmmmmkmmkmmmmmmmmmk Mmmkmmmmkkmmm Mmmmkmmmmmmmmmm. My; mmmkmmm. Mommy.
A good lesson at the end there for computer overclockers of how to test stability of your system Give your pc a real world test such as games you play maxed out - don't give it artificial benchmark tests overnight to see how it does. That's like testing a boxers chin with a hammer - not real life. Thanks for the video, enjoyable.
And there is you're batterypack that will turn your house in a sweet sweet fireball. No isolation on positive terminals, cheap bms, squishing wires everywhere. I lost it after you smashed the pack with the steel hammer. I don't mean to be all negative, but this video had too many fatal mistakes, on such a dangerous thing as lipos. If you want to make a batterypack, don't do its like shown in this video, it wont end well. Especially if the pack isn't stationary. If it shorts anywhere, it will burn big.
You are never supposed to solder to the negative end. It overheats the chemicals. You can solder to the positive end if you are fast and then cool it down right away. Use a spot welder.
don't, this is extremely dangerous especially with the pack size. if you want to make a large high capacity pack, especially one for an ebike where its liable to get scuffed up a bit in normal use. use cells with the same specifications. this person has no isolation on his terminals, wires crossed over each other over and over creating stress points, his controller is utterly inadequate, and his soldering of everything onto the cells is a catastrophic mistake. 18650 cells have a high capacity, and with that many you're playing with fire. the heat from soldering nickel (if he didn't cheap out and use plated steel) onto them could easily damage the cells and turn your pack into a firebomb waiting to happen don't fuck around with electricity, if you want big power you better put big safety measures in place
Never ever use solder in battery pack please use spot welding .... because it will increase resistance and in case of over heat it will melt don't do it
as a very smart woman said in her very long post below. Dont solder batteries. solder creates resistance, which creates heat and eventually fire, a very hot bad fire.
Experimenting with 312 BATTERIES without even knowing if it works or not.... I will choose to buy a new one rather than wasting money and time on this 😁😁 Still a good video for time pass😂
this battery would have been ok ,and probably worked fine he used cells holders ,so there isnt any cell movement ,he didnt sandwhich any ball wires between the two packs ,should have increased the series connection points one for every cell,and as long as he has padding with hard outer cover ,it will fine
This video could easily serve as a great example of sloppy workmanship and dangerous practices. Fortunately it's to power an e-bike, there is some chance that it will combust when you're outdoors. Never ever charge this thing in a house.
Series voltage is how much electrical "shove" can occur. Stacking in series increases voltage. Stacking them in parallel, adds to the amperage. So the voltage stays the same, but the length of time something can be run increases. Think of a AA battery. 1.5v. 500ma Only lasts so long... but if you could put one next to it in parallel, it would still be 1.5v but with 1000ma capacity. If you put them in series, you get 3v, but still only 500ma. Understand? By stacking the batteries in specific patterns, one obtains 48v (54volts OCV) then has multiple 48v packs paralleled together to get the desired amperage/hour rating.
12 wide, by 14 long, by 2 stacks high means there are 336 cells there. @ 3.7v per cell (presumed) if one connected all these batteries in series you'd get 1243.2volts but with "only" 0.8amps. Please bear in mind, that little bit of amperage at that level of voltage will very likely kill or severely injure you. Lose a finger easily. But if you lower the voltage from that 1243volts , thus increasing the amerage... one gets a battery that is useable for their needs. 622v for 1.6amps 311v for 3.2amps 160v for 6.4amps 80v for 12.8amps 48v for roughly 25 amp/hours. (Means you could draw 25amps continuously, for one hour, before "low voltage" occurs) Edit: All these are ballpark figures based on 800ma batteries. Ive come to learn that 18650 cells typically run 1600ma and larger. So change the math accordingly.
as the days goes by, much better to build your own battery bank using cheap battery made lithium ion aldo you need some to know about its safety building, I can tell you like this because you cannot easily secure used battery from laptop or in any gadger or even in motor or e bike that having original battery for they are available but too much money for you and a waste of time of seccuring from now, aldo I like what your fun of having busy doing things that can give us opportunity to have one in collecting used stuffs to be use again, thank you.
It is well known that if any 4.2v lithium cell ever gets below 2.5 volt it is ruined. Do not ever try to use them. The chemistry goes bad and they become a fire hazard when charging.
@@mattassurance45 No my guy. This is first hand experience. I HAVE learned. Once the voltage goes too low you get a crystalline grown which can penetrate the membrane separating the electrodes. The result is when you try to charge it you'll notice the battery never gets to 4.2v, it sits there and gets hotter and hotter. If your not mindful the pressure can build up, it can outgas and even catch fire. The proof is out there. Its happened to many people. I don't see how you doubt it.
I have been doing this salvage for quite now.i can tell it works.i had more than 700 cells.never saw any problem with cells that were even below 0ne once i restored them.
If a DC motor is rated at 9 Amp, I hook it up to a battery pack rated at 20 Amp, will the battery pack burn the DC motor eventually? Or will the DC motor only draw 9 Amp though the battery pack is rated at 20 Amp?
A 20Ah battery is just the capacity, which is what the battery can supply. The load(DC motor) will just draw 9Amps. Assuming it draws 9 amps continuously, you can run that motor for 2.2 hours on that battery. The battery won’t dump 20amps on the motor. Extreme Over voltage of the DC motor will destroy it.
OK so say I'm doing a 13s 48v battery can I use one row of 13s with say ampage of 4000mah batteries and another 13 row with 3000mah to get a 7amp hour battery???
I think it is not worth buying old laptop cells because they are too different from each other and they are actually pretty expensive. If you want cheap cells Sanyo UR18650SA 1200mAh are good because they also have pretty high discharge capacity.
I feel like this will fail fast since u have no idea what each batteries capacity is or the output c rating is therefore some batteries in the pack will fail from working harder than others
hy , if i have cell's from 1700 to 2300 mah can I use them all in one power pack ,( 120 cell's )? or I should use only 2000-2300 cell's in one small pack ( 50 cell' ) thanks
Always try to have similar cells - not just capacity. Similar internal resistance is important. Similar discharge curve is also very important but we cant speak about that with different recycled cells.
![Seungmin "그렇게, 천천히, 우리(As we are)" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/kAzmhLHePqU/mqdefault.jpg)
Don’t miss the next video. How to put out a fire in a giant battery made of unbalanced cells
lol
Seriously a very clandestine way to make such a big battery. No way I am putting this bomb anywhere near me.
'unbalanced '? You see the balancer being connected about half way in.
@@patdbean if 2 cells are in parallel and then lower voltage cell will get damaged
@@ducky504 Quite , 'parallel ' cells just balance themselves , in a 20p7s battery the balancing board works across the 7s
Omg man, you just built a time bomb. Those bms balance wires between two layers of cells, under pressure. Shorts between balance wires is the most causes of a lithium cells run in fire. WHAT A MESS.
Not to mention he soldered the tin to the battery (don't use solder directly on the 18650)! Spot weld only.
@@AllAroundTube50 up next how to put out an E bike fire.
@@AllAroundTube50 Some people just use what they have, not everyone has a spot welder. I soldering all my connections to around 300 batteries, has been working great for 4 years and the cells only need balancing twice a year.
@@mar504 WOW he can buy a heat gun but cant buy a cheap spot welder? think again totoy
@@AllAroundTube50 Whats wrong with soldering wires to the battery? If done correctly it is as good as a spot weld. Just not as pretty...
5:16, a gentle tap with the hammer to test if we can short circuit any of the batteries. Nice Sir
He would have to have had a wire connected across the entirety of the bottom of that pack and along that hammer to short anything
That battery is a bomb waiting to go BOOM!
Why?
@@jvlsgames4446 he dosn't know why but I'll tell you. He's not sure the cells in parallel are the same capacity. The smaller capacity cell will overheat under load.
and guys from a battery designer and builder here,soldering a lithium cell is quite ok ,as long as your soldering skills are professional level ,and have the right tools ,dremal to use mini wire wheel, and have killed spirit flux and an etch flux and correct cleaners ,and a magnetic heat sink that we put straight onto the soldered joint to instanly strip the heat out
we also use high wattage soldering irons usually 100 watt ,they allow you to get the solder down and take much much faster than a lower wattage iron ,with the lower wattage you have to heat the cell longer to build the heat up
How do you know the cells discharge rate ? Or are you basing all the parallel cells at a lower discharge rate, the purple ones can discharge at a max of 10A while the others may only be 5A or lower, if that's the case the purple cells will force the others to discharge at a higher rate creating heat and eventually cell failure
Look up "18650 cell data base" on Google and click on the fourum
WRONG! They will all pull proportional to every other cell in parallel group.. that would only be the case if the was a 4-6 p battery with low amp laptop cells and say something like a 25r 20 plus amp cell... Otherwise equal distribution and will pull exactly equally
Lil. Mmmmmmmml
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Mko. Mommy. Kkmo; kkmommm. Kkmokm
He has so many cells in parallel that the draw per cell will be very low
And then you selled it in ebay and title was "NEW 48V 80AH BATTERY 100%SAFE AND WORKING!
lol
Excellent project, thanks for sharing it. One question, what calculation did you do to determine that the full battery is 50AH?
Very complex connection bro without subtitles still complicated to understand.
Anyway thank you for your video
Great effort
Good luck
U r lucky that can manage used laptop battery. In my country it's never be possible. I hv made my own bike battery pack
A good lesson at the end there for computer overclockers of how to test stability of your system Give your pc a real world test such as games you play maxed out - don't give it artificial benchmark tests overnight to see how it does. That's like testing a boxers chin with a hammer - not real life. Thanks for the video, enjoyable.
And there is you're batterypack that will turn your house in a sweet sweet fireball.
No isolation on positive terminals, cheap bms, squishing wires everywhere. I lost it after you smashed the pack with the steel hammer.
I don't mean to be all negative, but this video had too many fatal mistakes, on such a dangerous thing as lipos.
If you want to make a batterypack, don't do its like shown in this video, it wont end well. Especially if the pack isn't stationary. If it shorts anywhere, it will burn big.
Thankyou, finally someone showing how to make a double layer pack👍👍👍👍
A
Lithium ion battery present in laptops thanks sir for giving info
You are never supposed to solder to the negative end. It overheats the chemicals. You can solder to the positive end if you are fast and then cool it down right away. Use a spot welder.
I would be concerned about heating up the 18650 while soldering, I would suggest improve your soldering technique. Good vid though.
Waste of batteries
You didn't measure their capacity and make a battery pack out of them?
Pls make an elaborate soldering and wiring video of this
don't, this is extremely dangerous especially with the pack size.
if you want to make a large high capacity pack, especially one for an ebike where its liable to get scuffed up a bit in normal use. use cells with the same specifications. this person has no isolation on his terminals, wires crossed over each other over and over creating stress points, his controller is utterly inadequate, and his soldering of everything onto the cells is a catastrophic mistake.
18650 cells have a high capacity, and with that many you're playing with fire. the heat from soldering nickel (if he didn't cheap out and use plated steel) onto them could easily damage the cells and turn your pack into a firebomb waiting to happen
don't fuck around with electricity, if you want big power you better put big safety measures in place
Super
@@sabotabby3372 нротимсммитиррп
@@sabotabby3372 ррр
Don't solder 18650 batteries. The heat will destroy the battery!
are you sure that the BMS can handle 60 AMPS?
Never ever use solder in battery pack please use spot welding .... because it will increase resistance and in case of over heat it will melt don't do it
Just great 😌😌👌👌👌
as a very smart woman said in her very long post below. Dont solder batteries. solder creates resistance, which creates heat and eventually fire, a very hot bad fire.
woow nice... what kind of glue did u used in shrinkable wrap? thanks..
Good bro....Remove plastic gear in motor then you should achieve good results..
Do theses cells have same capacity?
I doubt it
for good, each battery must be checked for discharge ... how many mAh, but what shows 4.2v does not really matter
only 4k likes.you need more bro
Sir appko only cells kharidne me kitne rupaye lage thee and kitne CElls kitne me aye thee please reply
Excellent
Can you please tell me how to calculate 50ah
how much each cell mah
Thanks
Experimenting with 312 BATTERIES without even knowing if it works or not....
I will choose to buy a new one rather than wasting money and time on this 😁😁
Still a good video for time pass😂
Why wouldn't it work? Batteries aren't complicated.
Nice bomb bro 😂👍💣
sir can we add more batteries in parallel in this Battery Pack
you shouldn't even add batteries in series with this method
You can definitely add more battery in parallel.
how do you charge this? where is that outport suppose to go in 11:48
?
Sar is battery pack se Kitna mileage miltahai
after few cycles this pack will be out of balance and stop working
Sir pls batao ye yellow wire kidar solder kiye pls reply me sie
You are bad
@@tomfamily9434 then iam your dad
@@ME-AND-MY-DOGGE if you bad I am your dad
@@totalarmy1251 ok nice
Wow batarri❤❤❤❤
Sir kitne din tak chalegi iss battery pack se matlab kintne cycle hogi is battery me
Bro great video 👌💪
What price you pay for one laptop battery
this battery would have been ok ,and probably worked fine he used cells holders ,so there isnt any cell movement ,he didnt sandwhich any ball wires between the two packs ,should have increased the series connection points one for every cell,and as long as he has padding with hard outer cover ,it will fine
Bhai used Laptop battery vo bhi itne saare mumbai me kaha pe milega?
What glue do use in blue wrap?
a question: at 1:30 you seperate d good cells from d bad ones;
yes, shortly after he tests them by charging and reveals which ones are good and bad
No fuses?
Looks good have not used it yet
No mah testing??
Recipe for disaster as the parallel group dont have same capacity. Result in overcharge and overdischarge.
Sir motor + battery kit total amount I want
₹15000
Hi, is it a problem that the cells are not the same?
yes, some problems will arise.
What is the Amp for the cells?
50ah
Hey buddy...how much ampere hour your BMS?..it's 36aH?...
Can we use this battery in electric scooter
Sir .is battery me 48v 250w hub motors me kitna maileg milega...or battery ka cycle life kitna hoga.?
What is name of your second bgm please tell me
*what about the current output, they dont seems the same*
don't think you can use this on an ebike
that's a huge array. i'm working on easy open source lithium technology @ 👍⚡ 🔧🐥
What is the volt of one battery cell and mah
Sir 2 battery each cost
hi. for recharging that battery what kind of trans or source we should use?
54.6v charger
Mau tanya bos
klw 72v dikasih 77v itu gmn bos ?
you missed many steps to see if this is good cells...
Nice video I am gautam
crazy build!
This video could easily serve as a great example of sloppy workmanship and dangerous practices. Fortunately it's to power an e-bike, there is some chance that it will combust when you're outdoors. Never ever charge this thing in a house.
Hi, where did you purchase the soldering gun from ?
do not use a soldering gun for the battery's, please use a spot welder
That's why I can't buy any you bought them all 😳🤣😂
There is no way that is 48 volt it is sooo much more
13s...48v, fully charged 54.7... u clearly do not understand lithium batteries...doesn’t Matt if it’s 1 in parallel or a million..
Series voltage is how much electrical "shove" can occur. Stacking in series increases voltage.
Stacking them in parallel, adds to the amperage. So the voltage stays the same, but the length of time something can be run increases.
Think of a AA battery. 1.5v. 500ma Only lasts so long... but if you could put one next to it in parallel, it would still be 1.5v but with 1000ma capacity.
If you put them in series, you get 3v, but still only 500ma.
Understand? By stacking the batteries in specific patterns, one obtains 48v (54volts OCV) then has multiple 48v packs paralleled together to get the desired amperage/hour rating.
12 wide, by 14 long, by 2 stacks high means there are 336 cells there.
@ 3.7v per cell (presumed) if one connected all these batteries in series you'd get 1243.2volts but with "only" 0.8amps. Please bear in mind, that little bit of amperage at that level of voltage will very likely kill or severely injure you. Lose a finger easily.
But if you lower the voltage from that 1243volts , thus increasing the amerage... one gets a battery that is useable for their needs.
622v for 1.6amps
311v for 3.2amps
160v for 6.4amps
80v for 12.8amps
48v for roughly 25 amp/hours.
(Means you could draw 25amps continuously, for one hour, before "low voltage" occurs)
Edit: All these are ballpark figures based on 800ma batteries. Ive come to learn that 18650 cells typically run 1600ma and larger. So change the math accordingly.
you should not use soldering on cell.
Please make a video for last wiring with key motor our battery etc
as the days goes by, much better to build your own battery bank using cheap battery made lithium ion aldo you need some to know about its safety building, I can tell you like this because you cannot easily secure used battery from laptop or in any gadger or even in motor or e bike that having original battery for they are available but too much money for you and a waste of time of seccuring from now, aldo I like what your fun of having busy doing things that can give us opportunity to have one in collecting used stuffs to be use again, thank you.
Price kya h
If average capacity one cell is 1000mah then we need 13s50p, for 50ah pack. 650 cells.
No.... Is a 2500 mah
Sir 60 volt 30 Ah how much price?
Hello
What is the thickness of the BMS board cables in AWG?
It is well known that if any 4.2v lithium cell ever gets below 2.5 volt it is ruined. Do not ever try to use them. The chemistry goes bad and they become a fire hazard when charging.
@john simmons You doubt me? It is pretty common knowledge. Do a little research and you will learn.
Complete ignorance.dont believe everything you hear from people
@@mattassurance45 No my guy. This is first hand experience. I HAVE learned. Once the voltage goes too low you get a crystalline grown which can penetrate the membrane separating the electrodes. The result is when you try to charge it you'll notice the battery never gets to 4.2v, it sits there and gets hotter and hotter. If your not mindful the pressure can build up, it can outgas and even catch fire. The proof is out there. Its happened to many people. I don't see how you doubt it.
I have been doing this salvage for quite now.i can tell it works.i had more than 700 cells.never saw any problem with cells that were even below 0ne once i restored them.
@@mattassurance45 Congratulations.
Where is sale the film covertor blue?
If a DC motor is rated at 9 Amp, I hook it up to a battery pack rated at 20 Amp, will the battery pack burn the DC motor eventually? Or will the DC motor only draw 9 Amp though the battery pack is rated at 20 Amp?
A 20Ah battery is just the capacity, which is what the battery can supply. The load(DC motor) will just draw 9Amps. Assuming it draws 9 amps continuously, you can run that motor for 2.2 hours on that battery. The battery won’t dump 20amps on the motor. Extreme Over voltage of the DC motor will destroy it.
@@jrebuilds Understood. Motor will adapter to amp. Over Voltage will destroyed motor. Thank you sir!
@@christopherowens2635 you’re welcome, glad it helped.
Uncle my laptop start button is not starting what shall I do can you make the video and show how to start the computer
How to charge this huge Voltage?
48v isn't that much. I have a similar setup, 2 large packs. They are 24v each and I put them in parallel to charge with just an RC charger.
Sir 60 volt 35 amp batterry pack kaise banana hai
Hello my friend
Can you do one battery for me I'll buy it 24v 22A for my son 24v car
🤣why ..suicide??
Pleasr can you show me it workng or not if you using to ebike
OK so say I'm doing a 13s 48v battery can I use one row of 13s with say ampage of 4000mah batteries and another 13 row with 3000mah to get a 7amp hour battery???
I think it is not worth buying old laptop cells because they are too different from each other and they are actually pretty expensive. If you want cheap cells Sanyo UR18650SA 1200mAh are good because they also have pretty high discharge capacity.
Depends on your sources, he may have gotten them for free.
Total pieces of battery ? =
Hey your videos very awesome can you make video to learn how we can make charge battery like this in min 12:33 please and thanks
Can I use difference mah battery
App laptop ki bettry kaha se lathe hai
How will you install this battery in cycle 😂😬
I feel like this will fail fast since u have no idea what each batteries capacity is or the output c rating is therefore some batteries in the pack will fail from working harder than others
are you sure its 50ah?
Kitne paiso ki battery's hogi 🙄
What's is the price of it.
By whear you have got the charger
AliExpress
what are the dimensions of this battery pack
?
Respect 🤟🏿🥽
Gee, you wrap up lithium batteries like that they're liable to explode. Just saying. Good luck on the road!
One thing guys..all batteries don't have same MAh....I.think...it is wrong way to make such battery pack??
Is it dangerous or not??
Reply
super
hy , if i have cell's from 1700 to 2300 mah can I use them all in one power pack ,( 120 cell's )? or I should use only 2000-2300 cell's in one small pack ( 50 cell' ) thanks
Always try to have similar cells - not just capacity. Similar internal resistance is important. Similar discharge curve is also very important but we cant speak about that with different recycled cells.
I dont know the bms connection
How am I supposed to know what you're doing if you DON'T TALK?