Build Power Bank Quick Charge 3.0 50000mAh with Old MacBook Battery

How to an Build Power Bank Quick Charge 3.0 50000mAh with Old MacBook battery at home
Thanks for watching, Have a great day !

[@mwint1982]

Great gift for grandma. Thanks! We need her inheritance fast

[@KaraEffect]

Lmao...

[@MrTots-pb7lq]

I wish i had a room like that 😭😭😭❤️

[@dawandurwar876]

Me too

[@-mose191]

Same...

[@gsk1595]

I have!

[@AbhishekSingh-ew7uk]

Me 2 bro

[@ahteshamtanoli1892]

may god bless you

[@riccardoiacob4560]

Beautyful project. Absolutely love it! 10/10

[@alphablade2505]

... 3 things which will prevent this from exploding : 1# use a better charging controller 2# dont use diffrent sized capacity/voltaged batteries 3# do not create such things

[@Subparanon]

Actually the different size/capacity is not a problem at all because of the way he's using them. He has them wired in parallel as one gigantic cell. Any difference in capacity or charging doesn't matter because the cells will always equalize among themselves. Say you had one cell at 3.2 volts and the others at 4.2. The moment he soldered them together, the 3.2 would have started charging off the others, and the 4.2's would have lost voltage until they were all equal and the same voltage. The same when charging up. This is how most ultrabook batteries are set up, with different sized cells spread all over the interior volume of the device, but running in parallel.

[@esqueue]

I do agree that I wouldn't trust that charge controller. As for your #2 @Subparanon already told you the facts. #3 I made an ebike battery using 130 18650 cells. It is setup in a 13s10p format. Nothing pisses me off more than ignorant people telling me that I'll blow my self up.

[@KuntalGhosh]

The first thing is to not subscribe this channel!

[@ThatGoth]

@@Subparanon Which means the larger capacity batteries will constantly discharge overcharging the smaller ones till... boom flames fire and brimstone!

[@user-mv3tr6jx9m]

@@Subparanon Parallel-connected batteries with different capacities are charged / discharged unevenly. The battery with the lowest capacity will be charged first, and the battery with the highest capacity will always be undercharged.

[@DavidSmith-dm8ew]

Good job, the only thing I would have done different would be to add an external charge port that could be hooked to a rc car battery charger....the charger in the input is at best 1000 mah.... so 50 hours to recharge it

[@user-ct3vs9bq4k]

1) вкусный гараж, аж слюни потекли...

[@pemulungelit9050]

I love your workshop... its messy and sooo technical

[@burgiosecondocanale4475]

Charging Samsung phone with Apple batteries 😂 BEST

[@DenRowRecords]

Questa powerbank fermerá la lotta tra Samsung e Apple (forse)

[@QueiServerSulDue]

@@DenRowRecords un commento in italiano e non contiene una bestemmia: dislike

[@DenRowRecords]

@@QueiServerSulDue 😂

[@yeZee.]

Porcodiooooo

[@gabryl7977]

E la madonna

[@erensirmali6886]

Why not use other batteries

[@uniquevlad]

" Honey, You got a big storm coming "

[@JohnJaggerJack]

How to burn down the house 101. Step 1: use Apple components.

[@VIPINSAINI_20]

😂😂😂😂😂

[@woshiq2]

samsung as well

[@miguelneggiehro]

Samsung galaxy note 7 battery as well

[@johnmck9530]

Take *note* (ha ha) that apple sources a lot of their batteries and screens from samsung. Apple makes a good phone in my opinion, but their busniess model and pricing is what I dislike them for.

[@krijndees]

@@miguelneggiehro that was a error in the making procces and is already fixed

[@a_s_mikael]

And he is a rich man who has all the gadgets and circuits and electronic parts in his warehouse.

[@TheSpotify95]

50,000mAh is crazy for a powerbank and it would take ages to charge up! I'd also be very dubious of how those Macbook battery cells were arranged together. Personally, I'd have used 18650s in parallel, and to a more modest capacity (one that won't take hours to charge up), thus saving the Macbook battery cells for something else. Plus, the whole pack will be limited by the weakest cell - if one cell fails, the whole pack goes. You also need to run a capacity test on those cells to see how much capacity they have left!

[@bengali8640]

.UC

[@maharabwahid6109]

and huge powerbank have only one output

[@rodstartube]

Those mac batteries are 3.8v nominal and 4.35v full charged, not the standard 3.7v / 4.2v batteries. It needs a special charger. Also cells were not tested. What to say about different capacities mixed in the pack. It's a complete fail setup & implementation.

[@technomen0872]

I think it might be important to state that everything he is doing in this video is incredibly wrong and will likely lead to an explosion/fire in the future! DO NOT TRY THIS AT HOME, he doesn’t know what he is doing

[@krijndees]

Most likely death if the titel is true watch my comment about thes power

[@justADeni]

exactly! 8 volts output, no charging/discharging board, combines different types of batteries... It was painful to watch

[@JR-vc4gm]

Those batteries have the same voltage

[@SnippetPack]

​@@justADeni why is the voltage 8v? because this is a fast charging battery, the output voltage of fast charging is dc3.6-6 volt 3 ampere, 6-9v 2a, and 9-12v 1.5a

[@justADeni]

@@JR-vc4gm And? What about current, or when some batteries are half charged and some completely discharged (small explosion sometimes)

[@user-ke4xu1bb6f]

Protective card must be on each battery. Then the difference in capacity between the batteries will not matter. But the total capacity will need to be measured by the weakest battery.

[@user-nu9vn9tl5j]

كفو عليك يالفلبيني.... اللي معي لايك اثبتو له وجود العرب ❤️🌹🔥

[@alaaldeenalteyp3498]

كفوو😂

[@MysteryPringles]

12:10 bomb has been planted

[@nazmulhassan7008]

🤣🤣🤣

[@indiankinggameing2644]

U r from codm

[@r3vere302]

@@indiankinggameing2644 counter strike bro.

[@Sketchy_Dood]

12:20 do I hear the armoured skeptic?

[@InventorChannel2023]

Good job i like a lot 👍❤👍

[@nevzatilhan6325]

Amazing assembly 👍

[@hiki_neat315]

I just wanna make a QC3.0 powerbank. Thank you. from Japanese

[@cheemsdoge977]

I love sony

[@Valansch]

No resistors between the cells lol, no prebalancing, no balanced loading. Lol this is a deathtrap.

[@esqueue]

the voltages were already close.

[@ritarooevans1897]

Exactely

[@alexanryset1404]

Different size cells no real bms besides the one meant for one cell it will do

[@shurimanslegacy8729]

No problem as long as it is in parallel charging

[@RogerRisson]

kkk, an electronic hand grenade! It may not explode at all, but I would never let this thing alone inside my house.

[@doumasama5654]

Wow you have everything in your work plase

[@rockerbilo]

Thank you for your video. Which main board do you recommend right now?

[@ahmedelwan9129]

nice work but 1 problem all battery need to have same capacity or they will die before each other

[@Cam-gb1cu]

When they are in parrallel they all balance each other the higher capacity cells will drain into the smaller ones so they stay at the same voltage the same as parrallel charging

[@KalluJuzan]

They will drain each other out of control. High drain continuously will stressed the battery. All lithium or polymer battery have short life cycle. Charging the battery in this condition will make battery more hot and soon it will die.

[@omotolaoyeniyi631]

1. The batteries are in parallel so no need of any balancing 2. The board included is a 1s balanced charger which will charge the batteries efficiently, 3. Different batteries capacities doesn't matter so far the cells are in parallel, it's just like 10 people pushing on a car, all their power combined will move the car regardless of the stronger or weaker person. 4. This is common sense, I don't think it's common anymore lols

[@technomen0872]

I think the more likely problem is heat from constant, uncontrollable discharge on the larger batteries to keep the smaller ones charged. This might lead to fires or even an explosion.

[@KalluJuzan]

@Technomen_08 Yes absolutly. Its not recommended for long time use. That why balancer is important even if in parallel.

[@c4pt1n54no]

This dude's got all the macbook batteries they denied Louis Rossmann to import.

[@ClutchTFS]

LMFAO xD

[@GuyScott1]

Quality comment

[@happyjohn1656]

😂😂 Quality comment LMFAO xD 10:39 AM 4/14/2019 Backwards order.

[@radosawwujec959]

BUAHAHAHAAHAH "D

[@Nirrrina]

So that's where they went!

[@nabilchnori3838]

Artist in every sense

[@hassan-aljarjri]

Brother, you have everything in store. If he has such a store, everything is available, work wonders.. well done good idea

[@PiratCarribean]

Interesting, multiple small and different sized cells instead of a few big cells.

[@seitakikindadumb]

Yeah make a huge powerbank but can only charge 1 cellphone at a time

[@tomey4558]

Lol

[@kiranpatil3262]

Be thankful for what you get in your plate for "free"

[@alexmvk_]

just add a usb hub

[@prince_9599]

Lol true 🤣 a.f

[@tfkoincognito]

Or it would be great for a ts-80 soldering iron

[@ikmalizzatjohari6475]

It's totally safe other than the fact of those kinda blunt ridges in the case but he kinda held it in place with double sided tape I guess? Also kinda wished he check the capacity of the cells and if there is any self discharging cells since one cell can actually drains the whole pack. Other than that I kinda dig it, I make some electronic projects too and it amazes me how many amazing components people throw out such as transformers and such.

[@ivanramalho2164]

E bom saber que isso da tão certo!!

[@TVLG_Real]

remember before using the USB Safety tester plug your phone

[@pniehusde]

DO NOT REPLICATE THAT! IT'S A DEATH TRAP! Batteries of different capacities and no balancing. This thing will catch fire sooner or later.

[@catkiller395]

That's a 1s pack bud. Don't need to balance.

[@moneymaker178]

It's true, it's a bomb

[@ThatGoth]

@If Perkov Why do people think this? the batteries will happily take a charge till they are all full but this will put a lot of strain on the lower capacity batteries, if you charge past the capacity of the lower capacity cells then you have created a constantly discharging larger cell and a constantly overcharging smaller cell, this creates what is commonly known as death!

[@johnsonholly8534]

活很細緻好評，很多粗燥可能因為演示而已。

[@thetesseract2237]

I don’t get why people are so against this All the cells are in parallel so the capacity of the cells adds up and doesn’t matter the size of the cell. There are no cells in series so people complaining about no balancing are fear mongering. The PCB has built in protection for over current, short circuit, overcharge, under charge, over temperature and will disconnect the battery if there’s any issues. As far as the 8v goes that’s how it charges quickly. Say you have a cable rated at 2 amps, under standard usb 5v you will have 10 watts available but if you raise the voltage to 8v still with 2 amps you now have 16 watts without burning your cable. Now the pcb will take that 8v and use a buck converter to lower the voltage to li ion charging Levels of 2.8-4.35v

[@leventedavid7400]

Hi do you think the different capacity battery cells are going to do with each other? :) Not too wise to work.

[@rodstartube]

Those mac batteries are 3.8v nominal and 4.35v full charged, not the standard 3.7v / 4.2v batteries. It needs a special charger. Also cells were not tested. What to say about different capacities mixed in the pack. It's a complete fail setup & implementation.

[@pozylojvladisi8387]

Если вдруг, кто-то кто знает русский язык заглянет сюда, то я хочу сделать поправку: нагревать термоусадку одетую на аккумы - это опасно. Лучше смотать изолентой

[@user-xr5py3zm1i]

Конечно синяя изолента +1700 мач к объёму!!

[@MadMaxRU]

Мне кажется херь это

[@MAX_JVCR]

@@MadMaxRU херь конечно, никакой балансировки. эта херота ебнет когда-нибудь

[@vodolaz8697]

@@MAX_JVCR не просто выйдет из строя один и потянет за собой другие.

[@vodolaz8697]

@@MAX_JVCR И это скорее всего полимеры!

[@APOTwixx]

Very nicely done!

[@rdgomez586]

EXELENTE trabajo muy bueno saludos desde ARGENTINA

[@foamtoaster9742]

ha hecho una bomba. si las baterias se cargan muchas veces van a quemarse. para que no hagan esto es necesario hacer carga balanzada

[@princeakilesh4881]

Me to my friend :- how much mAh does your powerbank supplies? My friend to me :- Yes...

[@kyoudaiken]

Did you balance the cells beforehand?

[@JustAlb1n]

KYŌDɅI KΞN they will balance them selfs as they voltage was close enough, you will need to balance only when linked in series not parallel.

[@alexanryset1404]

Nope

[@alexanryset1404]

What do you mean not balancing them before hand makes it more fun you never now when its going to implode in your face😝😂

[@TheSpotify95]

Nope! Some were at about 3.8V and 50% SOC, whilst some were at 4.15V and almost fully charged. Thankfully, with them all being in parallel, they'll equalize themselves, and there wasn't too much of a voltage difference, so they should have been OK. Still, I wouldn't make a battery like this. I would balance them first, and I wouldn't use random mismatched cells that all have different sizes & different capacities. I'd also check the capacity of the cells first - no good connecting a good cell (high capacity, low internal resistance) with a bad cell (high internal resistance and low capacity).

[@jonasrobertodasilva1337]

Muito bom parabéns,,,👍👍👍

[@zjfgghxgn6537]

انت مبدع وذكي وعبقري اللة يبارك بيك على هل ذكاء

[@pixelz1199]

This comment section is just a smartness competition at this point.

[@eraldorh]

Most of them are retarded anyway. They literally have no idea what they are talking about, some of the worst are the dumbass comments about the 8v because they are too stupid to know what QC 2.0 is.

[@OhSoTiredMan]

I mean they're talking about safety...

[@OhSoTiredMan]

@@eraldorh They most likely missed the part where he used a board that supports QC

[@eraldorh]

@@OhSoTiredMan Its in the title....

[@eraldorh]

@@OhSoTiredMan Nothing wrong with the build as far as i can see. The only thing i would have done differently is charge the batteries up before installing them so their voltage is roughly the same from the start but the QC module he installed will have a balancing module on the board anyway as well as over charge/over discharge protection. The comments claiming its unsafe are as stupid as the morons that dont know what QC 3.0 is.

[@melayik]

50000 mah with 1 usb port 😁😁😁

[@OhSoTiredMan]

Usb splitter? but then again, 50,000mAH but one port😁😁😁

[@mwbgaming28]

@@OhSoTiredMan perfect for galaxy S10 5G owners

[@Cheese_1337]

good for nokia 3310

[@mwbgaming28]

@@Cheese_1337 yeah, y oiu can charge t hat power bank with the Nokia 3310s deuterium fusion reactor

[@Cheese_1337]

@@mwbgaming28 i mean it would run for months from that powerbank charge

[@amg2305]

One of the best giand powerbanks in YT !!

[@phitrow]

You should be duble USB on back side. (and step-up voltage to 12 and\or 19v.)

[@iggy151]

Each cell should have overcharge/discharge/temperature protection circuits since they are of different ratings. For the total optimal capacity of the pack, a good balancing circuit should be implemented

[@rodstartube]

Those mac batteries are 3.8v nominal and 4.35v full charged, not the standard 3.7v / 4.2v batteries. It needs a special charger. Also cells were not tested. What to say about different capacities mixed in the pack. It's a complete fail setup & implementation.

[@ruslan21kapit]

Bms контроллер нужен для зарядки, заряжаться нормально не будут все батареи. Требуется доработка

[@JbSun-power]

Very professional. Good

[@dragonlunar302]

From where you did get that batterys?

[@wariolive9043]

Agora para carregar está bomba elétrica vai demora uns 60 anos.

[@leandrogomes5547]

Ele deveria ter adaptado para carregar em uma fonte 😂

[@mariliaranielly]

Se poder mim responder, mim diga é fácil e barato todas peças que vc tem no seu estoque, porque a que onde moro cada item é bem caro e difícil 👏👏👏👍🇧🇷

[@krazy8947]

Não fala não,sempre quando assisto os vídeos dele,só fico imaginando "ele deve pegar direto da fábrica" kkk

[@mariliaranielly]

@@krazy8947 imagina essa facilidade aqui no Brasil, vc se vira e da de cara com todos os tipos componentes eletrônicos, e vc se sente realizado, para vários projetos

[@jamest.5001]

I have a few power banks I built, most are 4.5ah to 6ah, I have one that's 15ah plus, and I'm going to build one about 20ah with 8 USB out, and 9watt led light, being off grid, its good to have power and light, I have a 118ah 4s LiFePo4 bank, that is solar charged with 300watta solar, its for led lighting, radio, and has USB output, I'm thinking about adding a 12v- 120vac inverter, of about 800-1kw, so incase my main 24v systen goes down, I can keep my fridge going and have TV! I need to figure how long 118ah will last! Great video!!!

[@amkp40technology]

Nice box ! 😲😲

[@hiq9594]

Man....cut them coke nails off 😂

[@travelfoodandnature4782]

I think it will take 50 hours for charging this beast

[@adamsucksatyt]

At 1 amp

[@chemistryenjoyer53]

@@adamsucksatyt correct

[@ThatGoth]

It'll burn the house down way before that happens.

[@KaraEffect]

That long? 2 day for f shake 😂

[@princeakilesh4881]

50hrs how did you calculate that?

[@alexandrelimkin7681]

Is awesome & battery is compact inside cass

[@amitkr3873]

Nice work no explosion ..battery size no matter

[@VideoMarket]

congratulations! You made a beautiful bomb!

[@andresreborned8622]

exactly

[@JustAlb1n]

Exactly not

[@shurimanslegacy8729]

Video Market shut up

[@mhirocaynec.sosing1656]

hmm not.. 8volts was exactly what need for fast charging

[@akash-zg4vj]

It's correct. Most fast charging phones sometimes take higher voltages for charging. And i dont see any issues in the design of it

[@JordanPetersonTech]

Where did you get all the tools, the bins and drawers full of materials at your disposal? This is what I desire in my own shop but this takes time to achieve and years of collecting.

[@eros_1]

يمكن هذا مقطع الوحيد مابيها عرب😌😌💕

[@HAIDAR706]

غلطان حبيبي منزمان انا اتابعه ذا

[@eros_1]

@@HAIDAR706 مو كتبت يمكن😹😹😹

[@janunme]

Nothing will explode every thing is fine 👍

[@VlaadTulupov]

Lithium batteries without BMS?... hmmm I would run! That thing will overcharge and will start a fire.

[@mustaqimalfarabi8082]

What use of that board then?

[@SparkleTails]

I was just saying the same thing

[@vyshnavbs2260]

Ya

[@jblharman361]

Бмс уже встроенна на плату задки

[@jblharman361]

Батареи соединены паралельно и не будет такова что одна из ячеек разрядиться так как они будут заряжать друг друга

[@DolezalPetr]

50Ah? so charging with a two amp charger will take 25 hours? Crazy

[@tresabritto5684]

Yes

[@TheSpotify95]

More likely 50 hours at 1A... as that is probably a 1A charging circuit.

[@IsaKocoglu]

Excellent! Is there a way to test how much charge is left in it?

[@tariqmalikg]

Great work

[@TheBadFred]

It would be nice if you could explain what you are doing.

[@NavinBetamax]

BoooooooMM ! Fire and Smoke....mixed with Apple Syrup and Human remains ??!!!

[@somedude2492]

Looks like not even he knows what he's doing...

[@user-ep9rm4hy4h]

Я посмотрю сколько он будет его заряжать, дня 3 точно

[@2000vitaly]

Если плата поддерживает QC 3.0, то заряжаться будет мощностью в 18 ватт. Батарея емкостью 50ач*3.7в=185 Вт*ч, соответственно 185втч/18вт=10 часов при максимальном токе заряда. Если быть реалистичным, то часов за 12-13 зарядится полностью.

[@user-bo7ui1dp9z]

@@2000vitaly ты лучше скажи а ничо что ток 8 в????Причем так интересно после фокуса камеры в 2 раза вырос?))))

[@user-bo7ui1dp9z]

не, можт я спал и за время сна напряжение зарядки с 5 в до 8 поднялось?)))

[@user-sz2pc9vh3z]

Да если 1 ампер зарядка, вот 10000 powerbank 24 часа

[@user-sz2pc9vh3z]

Зато он долго не сядет

[@Subparanon]

Did you worry at all about not having any fuses or physical shutoff for the batteries? I'd trust it more if it had thermal fuses sandwhiched between the packs for charging, and over current fuse on the main bus in case something shorts.

[@Ngilmuminati_69]

You should make it with a more adequate BMS

[@MrHavoc1001]

Do you have long enough coke nails there?

[@TheBadFred]

Don't you need a load balancer for every cell?

[@Cam-gb1cu]

I'm pretty sure he just wired them in parrallel so all the battery's are acting like one big cell

[@professorfukyu744]

yes. as the cells charge unbalanced hell eventually have a boom.

[@akarshagarwal4516]

Yes he does lol. People even before connecting same capacity 18650s use protection circuits to do so and here its so misguiding for the public

[@68transistor]

@@professorfukyu744 nope

[@68transistor]

@@akarshagarwal4516 nope not in parrallel no need for balance

[@jailsonaraujo5766]

Ótimo trabalho parabéns

[@lez7875]

saudações do Brasil + like. muito útil. humm... dá pra ligar uma tv portátil??? sucesso.

[@randomvideos764]

Eso es una bomba de 50,000 kilotones, mas poderosa que la de Hiroshima y mas si nisiquiera son de la misma capacidad la baterías.

[@andresreborned8622]

si we esa madre al conectarla a la corriente explota

[@teknisiiseng]

How much input 5 volt...? That was long very long time 😂😂

[@SantoshGupta-np8hf]

10 days to charge 😅😂😂😂

[@trkonwarsawc3002]

O powerbang i şarj ettiğinde güzel bir elektrik faturası seni karşılayacak :)

[@faridwkf]

I love power bank videos and rc cars build Can you list the pcb you used in this video ?

[@pacsmile]

What's up with your pinky nail?

[@IxMoMo.]

I have a bad feeling about it i think from the first use it will explode

[@aguccislide6132]

Mshare AL-khuraiji nothing about a samsung in the video. it should be good.

[@IxMoMo.]

hvpeconnections hmmm fair enough

[@gibamec7636]

Very Very good! Top, show!

[@surojitdasgupta3521]

you can build an spaceship just with the stuffs you have in your room...awesome dude

[@rofox8982]

This poverbank can and car charge. Excellent, I also make interesting videos.

[@Frendboy007]

I watched your videos, it is very interesting. 👍👍👍👍👍

[@tariqkhan1022]

dont know spelling of power

[@vaibhavnikk]

Isko power ki spelling Nahi pata aur youtuber banega 😂😂😁😁😀😀🤣🤣

[@ricardofl]

Great.. Congratulation..

[@abanggntng9768]

I like your home.

[@tormozzzful]

не то чтобы мне это понадобилось хоть когда бы то ни было в жизни, но смотреть довольно весело) upd. провода и соединения батарей все же стоило сделать поболее, тогда бы потери на сопротивление проводов были бы куда меньше а мощность батареи выше

[@a6dulsalam511]

wowoo 😮👌

[@adslammer1359]

Waitttt a second, Ur using different capacity batteries and without a BMS!!!???

[@joe070907080706]

ADSlammer they in parallel

[@adslammer1359]

@@joe070907080706 yes, but its not the best for it's health!

[@34Gw]

@@adslammer1359 No! BMS is used when you connect serial

[@somedude2492]

@@adslammer1359 you can't connect a bms to a pure parallel battery pack.

[@cecilcooper6210]

Dang! At least he could have used fuses between the cells!

[@oldrandomcomputing6247]

7 adverts on one video??? That's insane!

[@gyrotrake]

мне одно не понятно! откуда у этого х.. столько запчастей?

[@CuXaPuK]

Most likely in his father workspace. Whole video is just a cringe of doing wrong things one after other. I am afraid to imagine what will happen when kids attempt this at home with even more mistakes, I hope no one dies, literally...

[@DrFailov]

@@CuXaPuK what's wrong with this powerbank?

[@user-jp4nf4sn6f]

Он - из Китая, а у них всегда все есть))

[@CuXaPuK]

@@DrFailov there is a couple actualy, for the start, dont connect Li-ion batteries in parralel circuit, if batteries has their capacity in mah in different levels, this will cause cells to be unballanced and they will die quick, also, total capacity will not be the summ of all capacities used. Also, do not use ready dc-dc boosters like that, I would recomend to buy the one that is more powerfull, lets say capable of at least 20w of active power, so wheb you charge your phone at 10w peak, it would not get as hot as if you use 10w or 2amps 5v booster, because in second case it would be working at its max, therefore causing loss of efficency of capacity available... just adding my two cents!

[@DrFailov]

@@CuXaPuK as you mentioned about different capacities, it's not a problem in parallel connection, besause batteries self-balancing. It's a problem in serial connection, so then balancer board is needed. As for DC-DC board, it's not able to output much power, so, it's no problem with overheating.

Very expensive powerbank, use 18650 cells.

[@yusufyldrm7839]

and very explosive.

[@EthanShort]

the idea is it was free from junk he had lying around

[@gustavo837100]

Olha quantos componentes a disposição, ele é oque? Milhonário kkk

[@jap4xff784]

Unico br nos comentários kkkk

[@fbi-federalblyatofinvestig3853]

Those joints between those batteries are what I would see in my nightmares.

[@jeremypalon8327]

50A?! It'll take forever to charge!

[@razvan795]

and forever to discharge

[@venkatperla]

It's not 50A ,it's 50Ah,the difference is like km and kmph

[@venkatperla]

@step sister if u know what i mean you really need to pay attention to physics,amp (A) is a measurement of current ,while amphour (AH) is measurement of capacity.just like km is distance and kmph is speed

[@dini86]

@step sister if u know what i mean I bet you are the person who also states that a human needs 2000 calories each day...

[@dini86]

@step sister if u know what i mean As you are saying above that amps is the same as amp hours then I´m sure you don´t mind saying wrong units to other stuff either (maybe you do not even know what the difference is, other than a letter). What you are saying is that it is ok to say "My cars fuel consumption is 8 liters" or "While jogging, my maximum speed is 10 kilometers" or "My electricity bill was last month 200 kW". All those three examples are totally nonsence and the only outcome is that you make yourself sound like the worlds biggest idiot when using them or some other similar "short forms for units".

[@jaishankarm5920]

Don't connect different capacity in parallel

[@jaishankarm5920]

@@34Gw To maintain uniform charging and discharge

[@somedude2492]

@@34Gw that is the problem. A 1 Ah battery will get to 2.5v faster than a 2.5 Ah battery will do under the same load. This means constant high current is travelling from the large cell to the smaller one (and vice versa when charging the pack), which will end up destroying the cells.

[@EthanShort]

@@somedude2492 this is not a problem as parallel cells work the same way as literally 2/3 of one cell in parallel with the 1/3 of the cell. yes more current will go in and out of the larger cell but that makes no difference as it all supplies the same amount of current per amount of cell. current will only travel between cells if the voltage is different, which is impossible in a parallel pack, except for when building the pack.

[@daeyvidd]

@@EthanShort couldn't have said it better myself... It makes me wonder where people learn these ridiculous theories.. a single set of lithium cells in parallel are probably the safest form to be in, no dodgy balance function that can fail, only cc &CV to rely on.

[@davidspl]

Very good idea and a cool job.

[@giuseppeblanco1256]

I think you should add a balancer board and only use cells of the same type.

[@daeyvidd]

No bms needed for parallel cells, and therefore different types don't matter when there's 4+