How To Make 3.7 Volt Battery Charger Using BC547 Transistor | 3.7V battery charger automatic. Ep 9

So Hey Guys, in this video I will teach you how to make lithium ion battery charging circuit using BC547 transistor, the most popular NPN transistor BC547 if you are finding for any Lithium ion battery charging circuit then this video is for you :-) not lithium-ion battery you can charge any 3.7 V battery using the circuit. I hope you enjoy this video :^) do like and share with your friends & comment below on which topic do you want next video? keep doing, keep fail, keep working...
Circuit Diagram -:
www.diyelectronic.in/2022/05/a...
Like 👍🏻
Share 🌻
Subscribe 🙂👉🏻 / diyelectronic
for more interesting videos like this.
🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻
To HELP this Channel Buy Anything from Amazon,
amzn.to/3mVZ7Ht
Circuit Diagram is in video 😉
🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻
💁🏻‍♂️ Our social media Links -:
KZbin.
/ diyelectronic
Instagram.
/ diyelectronic
Instagram (personal account)
/ thakur.prabal.singh
Facebook.
/ diyelectronic80
Twitter
/ diyelectronic
Website.
www.diyelectronic.in
🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻
Some Important Electronic Components & tools which I use 🧑🏻 -:
Resistor Kit - amzn.to/39KHpBC
Electronic Components Project Kit - amzn.to/3fiJ16z
12V 5 Amp Power Supply - amzn.to/2PhBQkQ
12V 10Amp Power Supply - amzn.to/33e1Tl3
12v 1.3Ah Rechargeable Battery - amzn.to/2PfKYGt
12 Volt 7 Amp Battery Charger - amzn.to/30DZRsw
Lithium Battery - amzn.to/30FJr2X
5V 1A 18650 Lithium Battery Charger Module - amzn.to/2DoDhLq
Universal PCB Print Circuit Board - amzn.to/2PdKJvH
Hi-Watt 9v Battery (Set of 10) - amzn.to/2Ezr6vM
Digital Multimeter - amzn.to/3grGdFW
60 Watt Soldering Iron - amzn.to/39KOp1o
25 Watt Soldering Iron - amzn.to/2EzscYq
Soldering iron kit - amzn.to/3ggG08e
Alligator Clips Wire Testing - amzn.to/2PhFD1y
A1 Cutting Mat - amzn.to/3fkuzuU
Equipment & Services I use -:
Camera - Canon 200 Mark ii - amzn.to/2PB7JF9
Lens: Canon 50mm - amzn.to/2Dunsmh
Mic: Boya M1 - amzn.to/31CPAw0
Laptop - amzn.to/3i3dV4V
Light - amzn.to/33GwMPd
Digitek Tripod - amzn.to/39RBj2u
My 2nd Gorilla Tripod - amzn.to/3gxlhwU
Software to Edit My Videos - Wondershare filmora 9
Thumbnail: Canva, Pixellab
Ignore 👨🏻‍🏭
-
how to make, diy electronic, diy electronic new video, diy electronic, bc547 transistor project, bc547 transistor circuit, npn transistor project,
3.7 volt battery charger automatic, 3.7 volt battery charger automatic auto cut, 3.7 v battery charger circuit with auto cut off, 3.7 v battery charging circuit, how to make 3.7 volt battery charger circuit,
lithium ion battery charging circuit
@diyelectronic
🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻🔺🔻
Music 🎶 Credit -:
[NO COPYRIGHT MUSIC] PERCUSSION POWERFUL ACTION SPORT STRONG BEAT // ROYALTY FREE MUSIC
(End Screen Sound)
𝙏𝙝𝙖𝙣𝙠𝙨 𝙛𝙤𝙧 𝙬𝙖𝙩𝙘𝙝𝙞𝙣𝙜!

[@DiyElectronic]

Circuit Diagram -: www.diyelectronic.in/2022/05/auto-cut-off-37-volt-battery-charger.html

[@mdbadiujjama9348]

Can i connect a buzzer in same terminals of green led?

[@shad7pk]

@@mdbadiujjama9348 Piezo Buzzer

[@shirishvasave8002]

This is just a battery full indicator circuit, it does not and cannot cut off supply to the battery.. These 18650 batteries must not be charged beyond 4.2 volt otherwise battery can heat up or explode and may lead to reduced battery life..

[@Surya-00]

Yes i agree

[@antoniohoppe1200]

acho que se colocar mais um transistor um relé de 5 volts e um foto acoplador junto com led verde, talvez corte a carga da bateria,

[@Salgra100]

Danger

[@tarun3712]

Y

[@tarun3712]

Y

[@urla.tejaswitaruneee2483]

Good Job bro . A great failure is the stepping stone to a Great Success and you succeed.

[@saraswatinaikar9859]

Thank you for making this vedio

[@srtvserials]

It is really working. I am subscribe your channel thanks for this video

[@basitawan3489]

Superb....its amazing

[@jacobwattimury5162]

Tq v'much for sharing. Gby ❤️

[@user-qj9vg1dt7g]

Молодец конкретно и по существу

[@robchitoe7199]

Very good!

[@anuproy6148]

Very nice video please diagram and pcb layout thank u sir

[@user-pw4ge7rw7x]

А диод какой марки нужен или любой подойдёт? И резистор 1к, это 1кОм вы имели ввиду?

[@aruraj940]

Super bro

[@cholito1949]

Excelente video.

[@pltspemula]

Hood jobs👍

[@a.k.m.manzurmurshed210]

Nice. From Bangladesh

[@subhamkumar-mr9dh]

Love you bro ❤️❤️❤️❤️❤️❤️

[@DiyElectronic]

😊😊😊

[@rearzaplayz2798]

Nice bro

[@momohhassan7213]

But the input and the battery are parallel to each other, how will the cut off work?

[@PesumKadhai]

But the input and the battery are parallel to each other, how will the cut off work?It will simply send 5v into the li-ion battery which is not good and also the green LED didn't glow no matter how much times I turned it left and right (Do we need a fully charged battery (4.2v)), what is the charging current?????

[@praveenmurkar743]

Good idea.my question is where to bye battery compartment?

[@DiyElectronic]

I hope you guys liked this video. If the circuit is not working in use 100k preset! Circuit Diagram -: www.diyelectronic.in/2022/05/auto-cut-off-37-volt-battery-charger.html

[@nadirnadir7384]

Sir u didn't mention the input charging voltage value is it 4.2, 5v or greater?

[@techinstitutepk]

Is there any way that while charging LED should blink? If yes then must share changing in circuit. 2- Is it true that there is no proble if we connect charger all time after charging full?

[@E-learners97]

Very good video

[@ETBangla21]

awesome

[@prantonb7844]

Nice video

[@rdrx4]

i likes n subcribe good job

[@nicucostea2179]

My friend the bc 547 pin out are inverted in your video?

[@sanjayjoshi5713]

Thank Sir Very Useful vedio Sir i have a question can we use this circuit for 12 volt battey

[@anillunarbiswal8177]

00 piy

[@faisal5370526]

Good sharing 💓💓💓👍👍🌹🌹

[@ultimategaming9843]

Can I use any diode? Plz reply

[@valtersouzaribeiroribeiro9534]

Good good

[@shahidsiddiqui9678]

can i caliber this circuit to charge 1.2 nimh ot nicd cells

[@gamingedits739]

Can i use 330ohn instead of 220 ohm resistor

[@Bianchi77]

Creative video, thanks for sharing it :)

[@DiyElectronic]

Thanks for your feedback :-)

[@panthLeoJTm]

Hi sir what resistor value can I use for 3.78v full battery range ?

[@leonardobilazon3233]

Do you have a video for a 12v dynamo that can charge a 12v lead acid battery?

[@astralcomm7925]

i thought the left first pin is collector then base then the last is emitter for bc547 transistor?

[@md.abdullah4113]

Nice... Jodi kaj kore tobe...

[@RealtyElectronics]

Its really very very helpful.Thanks bro. Keep it up

[@jackraves7363]

a survivor YOU are 😉

[@HamzaShahzadEB_]

Is This a common base configuration of transistor

[@Arbsg]

क्या में 4 banttry एक साथ पैरलल में कनेक्ट करके चार्ज कर सकता हु।। ओर ग्रीन led on होने पर auto cut हो जायेगा क्या।। एक चार्जिंग सर्किट BMS के अनुसार बनाए जहां सिंगल banttry चार्ज हो जो 12 ओर 24 बोल्ट तक हो I am New Subscriber

[@ahmads6674]

Tank$.. from Ahmad Slamet. in jakarta

[@zvonimirrepasi1714]

Good video. Do you have a charging circuit for 2, 3, 4, 5 ... Li Ion batteries? Thanks.

[@amirkhazaie2608]

به ۷⁷ هم

[@ahmadfisherman8999]

Error method and unsafe, 5V was connected directly to the battery!and there is no cut off when the battery is full ! And no current and voltages regulation! And the charging current will be according to the capacity of the charger (USB jack)!!

[@harishnaik8844]

BC 547 Transistor has a 1st pin Collector, middle is base and 3rd is Emitter (CBE)and not E B C ?

[@sureyyaak5215]

I agree with You. First explanation like emitter - base - collector from left to right is not correct. Should be collector - base - emitter. And battery + is connected to collector.

[@roadmonitoroz]

I think he had it upside down when first soldering. It is stuck so far into the holder we can't really tell . But otherwise, it looks right. That's why he has labels.

[@singhpratik7571]

Nice Working 👍 Editing also nice 🔥

[@javierlaporte3139]

Cómo veo los cables, el positivo directo a la pila y el negativo a través de una resistencia, esto no hace el corte de carga.

[@ayushsarkar4148]

I am also need the circuit

[@pinkclover8588]

what type of diode is it?

[@mijanahmed1931]

Brother, how many hms are registered here? Please answer.

[@arkasali9]

Why did you burned led and transistor. Is there any circuit problem?

[@chourarachid1689]

the green LED indicat that the battery is full charge. the currant any time existe, and if you keep the battery on the this charger more than 15 minutes they will explode.

[@telecom360]

Really!!!, how is it cutting off the current even with or without 1k resistor?

[@ProgrammingEditingHub]

Will this cut off after battery full charge ? I don't see any relay in this circuit

[@mefairo]

No it just tells you battery is full..so rubbish...

[@maheshmuchhala8123]

Sir lfp cell ko charge krne ka btaye

[@makathi1234]

Please tell the name.of that component u used to adjust by turning

[@Surya-00]

Trrimer

[@julioferreira3548]

I like your videos, but lack of didactis. Please provide a detailed list of components used in the circuit. Thanks. I'm Brazilian, from Rio de Janeiro.

[@DiyElectronic]

Thanks For Ur Feedback! 😊

[@mazharkhan3271]

Bhai ye 4.2 voltage p fully charge hota hai

[@bryanherbert5215]

Sir why my green light just flashed. I use a 2k resistor, without the preset.

[@singingzone3056]

I think if the electricity is gone..then the red color led will glow continuously..and it will further discharge the battery..because of led ..u solve this problem..can I use a diode to stop the glowing led when no input current is given through charger??

[@makathi1234]

If we connect input and output , 2 red wires and 2 black wires at the same point, input 5v will directly go to the battery. Will it damage the battery?

[@shubhamsawant5129]

Sure, why not, it will definately damage. Also this ckt is just full charge indicator and no cut off is done

[@roadmonitoroz]

@@shubhamsawant5129 Not to mention it would probably overload the USB socket on your PC if the battery is low. I can just imagine causing hundreds or thousands of dollars damage to a laptop doing this.

[@momohhassan7213]

That is what he did , I don't see anything that will cut off in that circuit because is still parallel to each other

[@saulopalacio6157]

what is the charging current??

[@pembasherpa5916]

need circuit diagram

[@nirankarimobilecente]

👍

[@GurpreetSingh-eu7mr]

👌👍👏

[@faizanqureshi9030]

Series me 16 cell 1 sat charge kar sakte hain 1 Wqt me pls reply

[@DiyElectronic]

No Bro

[@abenkthanriabenk6566]

I don't care about that, but what matters is how the FORMULA of the series is.

[@vanlalpekapekathiak3828]

220 omh ketne watt use kia he

[@killershubr229]

Input or output in same point

[@Juniorfinger999]

Apakah perlu di seting terlebih dahulu..

[@dunderdee]

my circuit doesn't work but when I removed diode it works will removing diode do any change

[@DiyElectronic]

Brother watch this video -: kzbin.info/www/bejne/eJfXeKmpeKyAg5o I have explained, about the circuit.

[@efathossainhamim4750]

God iidea

[@abikdas3078]

Will it autocut

[@huseyinzumre3997]

AWESOMEEEE

[@learnandexplore7697]

Where do you had used USB?

[@AlexAlex-rj1dy]

The red led is connected directly to the power supply via a resistor to protect it. Explain to me by what magic it is extinguished.

[@gElectroniks]

Well you're not entirely right. It is not simply pluged int to vcc but parralel to the Emitter -Collector section of the transistor, which, if becomes a very low resistance section, it will short the led and curent flows trough other parts of circuit, turning it off.

[@singingzone3056]

Kya ye really work krta hai??

[@pasantehen]

Why in the video do you put a resistor of one value, do they write another resistor of another value?. By the way, I do know absolutely the entire resistor color code.

[@enriqueatala2567]

Hi thanks! If I needed to charge a battery but at 1.5 volts, what should I modify in the circuit?

[@Itsimrana]

No

[@mahadotube]

yeah like you can charge from 3.76v to 4.2v in 15 min with a To-92 transistor that has 100ma max current.

[@mohammadanas2562]

Sir meri green LED thodi glow kr rhi h.. Why?

[@jean-lucjla2987]

Pensez à appeler les pompiers avant de mettre en service 😂

[@juanmanuelpenafielbeltran5727]

Primero, presenta un transistor en posición EBC y comienza a soldar el LED rojo. Luego termina el trabajo con el transistor INVERTIDO, CBE. ¿Con qué intensión? El preset ¿está correctamente colocado? Es perder el tiempo

[@Adilkhan-hs7yq]

how much input voltage is to given to the charger circuit .. 230 v or 12 v ?? or 5v ???

[@Adilkhan-hs7yq]

@@adityasoni6930 so we need a variable power source to charge this or a charger with 5v output.. then what is the use of this 😂😂

[@Adilkhan-hs7yq]

@@adityasoni6930 got it man but yet I don't know how much voltage it will need

[@ALEFILES]

I saw the entire video (Including the deleted part) and did not appear any circuit diagram... I have changed mi "like" to "dislike"...

[@ronaldplm.5933]

Pero la carga rápida daña a las celdas 18650 cómo va a cargar en 15 minutos una lo normal el fabricante dice cargar a 1 amperio y este men lo carga con mucho más de eso 🤔 Los ciclos de cargas se acortan mucho más rápido con la carga rápida yo no quiero cambiar mi batería cada año

[@AB786123]

bhai ye kette amp. current deta hy

[@ronaksoni4667]

Circuit diagram to dikhado please

[@basuroyal2783]

sir can I use 10k trimmer instead of preset

[@Surya-00]

Yee

[@starydedecek]

SUPER SUPER SUPER SUPER SUPER SUPER SUPER SUPER

[@amarendrag1178]

Sir please show the videos in circuit diagrams also in addition to showing direct soldering method.

[@bhuneshwarsakharwade6149]

12v bike battery auto cut sercit kit plate

[@vipulahir6339]

circuit output voltage??? mins how many volte output ?

[@Surya-00]

Depending on input voltage

[@rashid_1-R]

😘😍

[@GAMER-ex6hw]

This circuit is not for li ion battery..... This is very generous because this circuit have no over changing protection, over current protection...

[@nandumeshram4656]

पुरे part के नाम नहीं बतायें आपने. Diod, variable registnc की value भी नहीं बताई. और red led को variable reg से off करणा है तो full charge पे ग्रीन led लगेगी. फिर red led लगेगी कब 🙄😇

[@paulabraham2550]

Um.... Even were this actually to automatic cut off the input voltage at the desired level, which I don't think it does, there's a bit more to charging a lithium battery safely and without damaging it than that. Please, people, don't take this nonsense at face value - you'll end up with, at best, some ruined batteries.

[@bryanherbert5215]

Me I make the circuit safely with 2diodes, 1x 1kResistor,1x 820ohms,1x2k resistor, 1 bc547 , red as Ns green led, that's what it takes to make a complete Liion Bart charger

[@bryanherbert5215]

Very true brother

[@roadmonitoroz]

plus a burnt out PCB board in the laptop / PC from over current if the battery is low. Maybe I missed it but I don't see anything current limiting. Sure, he's got resistors to show when the battery reaches a certain level but nothing else.

[@momohhassan7213]

Please I need a good circuit for 3.7v auto cut off charger

[@momohhassan7213]

@@bryanherbert5215 please sir can u help me with the circuit, the one I have here is involved me in using relay

[@nikhil6763]

Circuit diagram?

[@prabalsingh3622]

🔥🔥🔥🔥

[@Rashidansari99164]

547 के कलेक्टर पर माइनस करेंट कबसे जाने लगा