DIY 48V 50Ah Electric Bike Battery pack from old laptop battery II Low cost II

Hi friends today I am going to show how to make 48v battery pack from scrap laptop battery.
Here I collect li-ion batteries from scrap laptop battery pack some cells in the batteries are dead but almost of them are good cells inside.
Before use It is better to test the current of the cells by a balance charger,
You can get 13S BMS Here : amzn.to/2MqNjQJ

Thank you for watching .

[@jmmluis]

Don’t miss the next video. How to put out a fire in a giant battery made of unbalanced cells

[@legoman8960]

lol

[@hyrochinz]

Seriously a very clandestine way to make such a big battery. No way I am putting this bomb anywhere near me.

[@patdbean]

'unbalanced '? You see the balancer being connected about half way in.

[@ducky504]

@@patdbean if 2 cells are in parallel and then lower voltage cell will get damaged

[@patdbean]

@@ducky504 Quite , 'parallel ' cells just balance themselves , in a 20p7s battery the balancing board works across the 7s

[@carloscostaleite9232]

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]

Not to mention he soldered the tin to the battery (don't use solder directly on the 18650)! Spot weld only.

[@pkf4124]

@@AllAroundTube50 up next how to put out an E bike fire.

[@mar504]

@@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.

[@dailypinoytech6132]

@@mar504 WOW he can buy a heat gun but cant buy a cheap spot welder? think again totoy

[@marks9127]

@@AllAroundTube50 Whats wrong with soldering wires to the battery? If done correctly it is as good as a spot weld. Just not as pretty...

[@sandroetn6907]

Very complex connection bro without subtitles still complicated to understand. Anyway thank you for your video Great effort Good luck

[@miguelsierra8168]

Excellent project, thanks for sharing it. One question, what calculation did you do to determine that the full battery is 50AH?

[@null7969]

And then you selled it in ebay and title was "NEW 48V 80AH BATTERY 100%SAFE AND WORKING!

[@legoman8960]

lol

[@SeifEddineB]

5:16, a gentle tap with the hammer to test if we can short circuit any of the batteries. Nice Sir

[@I_killed_that_beard_guy]

🤣

[@keanandelarosa1329]

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

[@Xircom10]

Thankyou, finally someone showing how to make a double layer pack👍👍👍👍

[@jayadebsardar3979]

A

[@andyb7963]

That battery is a bomb waiting to go BOOM!

[@jvlsgames4446]

Why?

[@hedialaya3230]

@@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.

[@vincecamba6796]

crazy build!

[@squllash]

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

[@bcd9994]

only 4k likes.you need more bro

[@Fester_]

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.

[@andruandu7632]

Looks good have not used it yet

[@sabrinamoonoo8139]

I love it

[@jasonmiddleton2375]

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

[@gerardjachymiak5822]

Look up "18650 cell data base" on Google and click on the fourum

[@kyleham1916]

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

[@rabindranathpradhan4613]

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.

[@rabindranathpradhan4613]

Mko. Mommy. Kkmo; kkmommm. Kkmokm

[@Louis-lu5wh]

He has so many cells in parallel that the draw per cell will be very low

[@atharvashukla4568]

Great work!!!

[@zamazakati]

I would be concerned about heating up the 18650 while soldering, I would suggest improve your soldering technique. Good vid though.

[@gamingwitharslan99]

Waste of batteries

[@sathishrukumani2777]

Just great 😌😌👌👌👌

[@dewikurniasih4271]

*Very* *Awesome!*

[@electronicselectricalhub5228]

Lithium ion battery present in laptops thanks sir for giving info

[@priestbrooklyn1094]

Respect 🤟🏿🥽

[@badhonebrahim7707]

Pls make an elaborate soldering and wiring video of this

[@sabotabby3372]

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

[@Jesusmaniraj]

Super

[@user-uo8go3dc1z]

@@sabotabby3372 нротимсммитиррп

[@user-uo8go3dc1z]

@@sabotabby3372 ррр

[@mrhkexperiment]

super

[@ashoksingh7266]

Very useful idia thanks sir

[@mdaslamknl]

Excellent Can you please tell me how to calculate 50ah how much each cell mah Thanks

[@asadshaikh5067]

Bro great video 👌💪 What price you pay for one laptop battery

[@chadtine05]

woow nice... what kind of glue did u used in shrinkable wrap? thanks..

[@muhdfairuz1078]

Wau.................hebatnya

[@batgroupcraft7863]

that's a huge array. i'm working on easy open source lithium technology @ 👍⚡ 🔧🐥

[@kishortandekar8117]

Mind blowing

[@JasonWW2000]

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.

[@mohamedjameen175]

Wonderful

[@Paradox_in_Japan]

Sir kitne din tak chalegi iss battery pack se matlab kintne cycle hogi is battery me

[@user-hg9yc2ls7y]

السلام عليكم اخواني و الله على هذا الشياء وكفو من عندكم ان شاء الله شوي والله مشغول نور الزين شوي

[@kartikjaiswal6358]

Sir appko only cells kharidne me kitne rupaye lage thee and kitne CElls kitne me aye thee please reply

[@sssara2395]

Nice

[@xpndblhero5170]

Holy Crap..... What in the hell does that power¿! LoL

[@niharkakadiya9781]

Best video

[@milodimich16]

Exelent

[@thetechfromheaven]

Nice bomb bro 😂👍💣

[@abdullahsh572]

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

[@hindimusic5576]

What is name of your second bgm please tell me

[@angelffalcon3134]

*what about the current output, they dont seems the same* don't think you can use this on an ebike

[@JorgeFlores-ck8bp]

are you sure that the BMS can handle 60 AMPS?

[@Outdoor.turkiye]

hi. for recharging that battery what kind of trans or source we should use?

[@bfv7]

54.6v charger

[@bandiganesh4364]

I want that battery bro

[@kollabattulavenkat232]

Sir 2 battery each cost

[@moya9450]

You didn't measure their capacity and make a battery pack out of them?

[@raedy07]

a question: at 1:30 you seperate d good cells from d bad ones;

[@Officialmartymars]

yes, shortly after he tests them by charging and reveals which ones are good and bad

[@SIva-sl5ie]

Super pro

[@fpvcowboy2635]

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???

[@technicalgohel6819]

very good

[@martintv2936]

Best video supqer

[@DarkTay100]

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.

[@gauravchaudhary5697]

Please make a video for last wiring with key motor our battery etc

[@rockhard9872]

Hey buddy...how much ampere hour your BMS?..it's 36aH?...

[@aku7598]

If average capacity one cell is 1000mah then we need 13s50p, for 50ah pack. 650 cells.

[@gianlucamuratori2575]

No.... Is a 2500 mah

[@shandaze6924]

Wow

[@garciaguillenoscar]

Hola, he conbfeccionado la batería, pero se me calienta mucho el control bms. Por que puede ser posible ??

[@FM-fn7eo]

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

[@krlenjuska]

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.

[@yodajacara9601]

O MISERÁVEL E UM GÊNIO

[@udaykharate8897]

Sir pls batao ye yellow wire kidar solder kiye pls reply me sie

[@tomfamily9434]

You are bad

[@ME-AND-MY-DOGGE]

@@tomfamily9434 then iam your dad

[@totalarmy1251]

@@ME-AND-MY-DOGGE if you bad I am your dad

[@ME-AND-MY-DOGGE]

@@totalarmy1251 ok nice

[@TheNone724]

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.

[@mar504]

Depends on your sources, he may have gotten them for free.

[@JisanUsman]

Wow batarri❤❤❤❤

[@kadeksumanada21]

Woww amazing nice

[@genelkonular2638]

Hello What is the thickness of the BMS board cables in AWG?

[@panditbagade7208]

Sir 60 volt 35 amp batterry pack kaise banana hai

[@paraskevasmavragannis2923]

Perfect BOM

[@I_killed_that_beard_guy]

Bomb?

[@naveenvasan.sxl-a351]

What is the volt of one battery cell and mah

[@genelkonular2638]

👏👏👏👏👏

[@RaviMandli]

you should not use soldering on cell.

[@kenilpatel5509]

sir can we add more batteries in parallel in this Battery Pack

[@sabotabby3372]

you shouldn't even add batteries in series with this method

[@nelsoncruz7278]

You can definitely add more battery in parallel.

[@fondrees]

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.

[@jonspaulding7053]

That's why I can't buy any you bought them all 😳🤣😂

[@Rahulgamingshortyt]

Very nice video

[@pintugujaratistatus3976]

👍👍👍👍👍👍👍👍

[@AllAroundTube50]

Don't solder 18650 batteries. The heat will destroy the battery!

[@ROHITYADAV-ls3lj]

By whear you have got the charger

[@AMANSHARMA9991]

AliExpress

[@ibrahimrouf1198]

Rangkaian 💣 Bom.. Hahaha

[@danayah2004]

thank you i know how to build bomb

[@abdulrahim88th]

Uncle my laptop start button is not starting what shall I do can you make the video and show how to start the computer

[@aboodymahdy]

What is the Amp for the cells?

[@jabirjab8138]

50ah

[@nasseralsendi6281]

Hello my friend Can you do one battery for me I'll buy it 24v 22A for my son 24v car

[@checkinginformation6991]

🤣why ..suicide??

[@coolgamer1989]

you missed many steps to see if this is good cells...

[@bharatdwajpatel1858]

Nice video I am gautam

[@lovishjollymet5605]

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😂

[@mar504]

Why wouldn't it work? Batteries aren't complicated.

[@vikasbalhara71]

Price kya h

[@amartv4758]

DANJAR FOR YOU

[@jboy6944]

Hi, where did you purchase the soldering gun from ?

[@themoonlauncher5849]

do not use a soldering gun for the battery's, please use a spot welder

[@zamazakati]

No fuses?

[@ethanjohnaragon7878]

What glue do use in blue wrap?

[@avinashambavane6772]

Bhai used Laptop battery vo bhi itne saare mumbai me kaha pe milega?

[@ranjamesibarra8180]

Do theses cells have same capacity?

[@legoman8960]

I doubt it

[@user-qv2bu6br6i]

for good, each battery must be checked for discharge ... how many mAh, but what shows 4.2v does not really matter

[@mybattery18650]

C est dangereux de charger des accus en dessous de 3v

[@jamescameron277]

Gee, you wrap up lithium batteries like that they're liable to explode. Just saying. Good luck on the road!

[@shandaze6924]

What the- Who have many old laptop

[@activesintujohar344]

Nice meet

[@SATAOfficial123]

Pleasr can you show me it workng or not if you using to ebike

[@ebikebatteryrepair]

after few cycles this pack will be out of balance and stop working

[@michaeltete5870]

Hello dear friend, how do you combine batteries of different capacities? Example: 2200mAh, 1800mAh, 2600mAh, 2000mAh etc. I want to make a 7S3P 24V battery.

[@kevins21]

You can but I would not mix. Batteries need to charge and discharge at the same rate. Here a good site to learn more about how batteries work batteryuniversity.com

[@AllAroundTube50]

Each parallel pack should have the same capacity (as close as you can make it). SO if you have 21 cells ranging from 2200mAh, 2600mAh, 2000mAh, each Parallel pack should have a 2600, a 2200 and a 2000 mah cell so that the total capacity of each of the 7 series packs is about the same as each other (get it as close as you can).

[@christopherowens2635]

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?

[@jrebuilds]

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.

[@christopherowens2635]

@@jrebuilds Understood. Motor will adapter to amp. Over Voltage will destroyed motor. Thank you sir!

[@jrebuilds]

@@christopherowens2635 you’re welcome, glad it helped.