Simple 3.7 volt battery charger with auto cut off

In this video, I will show you how to make 3.7 volt 18650 battery charger auto cut off with constant voltage & current, using very few components at home.
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Required Components For This 3.7 volt battery charger circuit.
1. MJE13005 Transistor or (Any NPN).
2. TL431 Shunt Regulator.
3. 2x 1 Kilo Ohms Resistors (1/4w).
4. 680 ohms Resistor (1/4w).
5. 47 & 470 ohms Resistors (1/4w).
6. Anode Bi Colour LED (Green + Blue).
7. Recommended to make on Pref Board.
IC chip: www.utsource.net
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Capacitor: www.utsource.net/category/pas...
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Transistors: utsource.net/category/elec-co...
Darlington: www.utsource.net/category/ele...
Sensors: www.utsource.net/home/sensors"
Circuit Diagram & PCB layout, Gerber Files Download link
drive.google.com/file/d/1JqQC...
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I hope this video was Useful and you liked it if you did press the thumbs up button.
(Creative Techos)
#batterycharger #18650 #Electronics #Circuit #Projects

[@CreativeTechos]

Circuit Diagram link & Part List Given in video description.

[@Edmorbus]

Keep up the good work
Thanks for sharing

[@CreativeTechos]

Thanks for watching 🙂

[@AryanKumar-kn3ys]

Thank you very much

[@user-un2ni8dl7y]

Good work 👍

[@aungmyokhaing6795]

Can still battery put without removing after fully time in these circuit as auto cut off by mosfet?

[@ardisaja5687]

can it use for powerbank or smartphone?whats must be modified

[@hectorfabiovidaljaramillo9624]

Buenos días hice los dos tipos de cargador de batería 12v que aparecen en los vídeos pero ninguno marca cuando la batería está cargada alguna solución o que hice mal ?

[@mdkalam-ry2yi]

Thank you bro❤

[@rosskiernan3832]

Any alternative to using a shunt regulator i haveint got any

[@Ricki63-Ok]

Thanks 1000 for always! place the circuit. I feel very respected. Thank you! And good life

[@CreativeTechos]

Thanks for watching 🙂

[@sudhisudhis818]

Bro it is too nice it will get for us for volt two battery

[@Tousifarafat04]

very very good video ❤❤❤❤❤❤ but ,can i use 13007 instead of 13005?

[@aazartechnocreative6666]

I like your work

[@CreativeTechos]

Glad to hear that, Thanks for watching 🙂

[@qnedim3200]

Could you redesign for Lifepo4 battery cell (3.65 Volt) Thnx.

[@nemoerambler4749]

Интересное решение. Можно добавить пищалку для оповещения об окончании заряда акб.

[@rezkykonclank2884]

Terima kasih atas tutorialnya

[@CreativeTechos]

My pleasure, Thanks for watching 🙂

[@awantown2003]

Dear can you make 4.1v 10a solar charger

[@vishalgautam7319]

MJE13005 ki jagah bc546 transistor laga sakte hai kya

[@nidhin.s1747]

Sir can I use w431 instead of TL431 #please #reply

[@sumitnarkhede.3105]

sir you are make very well battery.charger.but sir plese lead acide battery charger make only for transistor and capacitor 4.2 volt cutoff voltage.

[@awantown2003]

I hope you can teach me how to make it

[@wowgaming1352]

What if i connect two parallel battery will this work

[@albertodiseno1973]

Muy bueno 👍

[@CreativeTechos]

Thanks for watching my friend 🙂

[@arjoena1807]

nice video, did u hv simple auto cut for 2s lithium battery video? thx.

[@CreativeTechos]

Recently uploaded, check out on channel

[@valdirenegomesfagundesdoss1471]

Esse sircuito proteje a bateria

[@electronicsworld7787]

Very nice👏👍💝

[@CreativeTechos]

Thanks for watching 🙂

[@ramonfermin85]

Saludos una pregunta es posible hacer el mismo circuito usando el transistor 13003 ya q no cuento con el 13005.? Gracias de antemano

[@nildadantas5902]

Pode ser com um tip 41c

[@andrimastirta4736]

Nice video🙂👍

[@CreativeTechos]

Thanks for watching 🙂

[@todoparalapescamariooscar4722]

MUY BUENO GENIO ,MI PREGUNTA ES SI SE PUEDE CARGAR DOS BATERIAS 18650 EN PARALELO CON ESTE CIRCUITO

[@enriqueatala2567]

Hola, no contesta mucho este genio, el tema de dos a la vez depende que esten descargadas igual, como asi tambien igual marca, etc... es mas, este circuito debería ponerse un diodo a la salida positiva hacia la bateria ya que puede sobrepasar toda la carga hacia el circuito, hay muchos videos mostrando el peligro que puede ser cargar varias juntas, consejo carga de a una o hacete dos circuitos idem. saludos

[@einnarrodriguez4027]

La idea de cargar en paralelo es menos peligrosa que cargar en serie, pero como dice el otro comentario, es recomendable cargar una pila a la vez, solo por seguridad, saludos.

[@darjusz56]

hello, why 4,08V ? 4,12-4,15 is be fine and better and secend question help me and show mi how do thi but 20,5V :(

[@asddgsasdg]

so this circuit autocut off battery when is full charged ?

[@MrErickpe]

Excelente

[@CreativeTechos]

Thanks for watching my friend 🙂

[@user-tz5hm7qx1b]

I have a power supply charger for cameras, and its capacity is 12 volts - 16 amps. It has a variable resistance to raise and lower the voltage. Is it suitable for this project?

[@CreativeTechos]

No, you actually need to use 5v 2-3A mobile charger

[@mtiger8]

Good work
If I do not have 13005 Transistor
Is there an alternative to it ??

[@CreativeTechos]

You can use any NPN power transistor, but take care of pin outs as different transistors have different pin configurations. 13005/13003 has pin (1 Base, 2 Collector, 3 Emitter)

[@jozefmalik8443]

Super 👍👍😎✊️

[@CreativeTechos]

Thanks for watching my friend 🙂

[@math-electric2049]

thanks

[@CreativeTechos]

My pleasure,🥰

[@kirangupta7364]

Can we leave it overnight charging?

[@shashiji27]

Nice, circuit. Your multimeter is very good please give link for purchase this type multimeter

[@CreativeTechos]

amzn.eu/d/5Tls5PH

[@math-electric2049]

very good

[@CreativeTechos]

Thanks for watching 🙂

[@abdullah.2020]

I can use bc547 or bc557 transistor

[@muralinair7093]

Thanks thanks thanks thanks your support good bless you 🙏🌹🌹🌹

[@CreativeTechos]

My pleasure, Thanks for watching my friend 🙂

[@sakibsarwat5064]

can it charge 5000mah also shouldnt it be 4.2v when fully charged?

[@CreativeTechos]

Yes, absolutely it can charge, and charging te may be little longer

[@sergeypetrov1358]

10часов ждать

[@amitkhobragade1977]

Hi... Can you place a link to buy the Multimeter you use.? Thanks.

[@CreativeTechos]

amzn.eu/d/efden02

[@MACYNET323]

How much is charge current?

[@user-sm2jd1pp6v]

Battery ke fix 4.2v hone chahiye tab battery 💯 percent hoti hai aagar batter main 4v honge toh 80 percent battery hogi

[@popau3151]

sir, is it possible to use the TIP41c transistor?

[@zinthuaung2606]

Can I charge 6 pcs battery?

[@petersack5074]

Appears, to be a ' comparison ' circuit; the transistor switches off, when its' voltage, is the same as the INPUT voltage....

[@lawalmohammed83]

Please Sir, what changes required to upgrade the charger to charge 8.4v lithium ion batteries?

[@thomasheredia447]

Those dont exist?

[@jasonpanugaling]

Can we add more batteries to this circuit?

[@CreativeTechos]

This is put current controlled, suitable for single battery

[@rizz1042]

bhai 1.2 volt nimh battery charge karne ke liye kya modification karna parega is circuit pe?

[@CreativeTechos]

That will require a different circuit, I'll try to upload that video ASAP

[@INCREDIBLE-INDIANS]

What is the ampere of this charger?

[@ECircuits]

how many ampere charger use ?

[@CreativeTechos]

You can use minimum 1A and max 3A

[@oyelekemufutau3009]

Let me have the list of components and Diagram sir.
Am from Nigeria Africa

[@CreativeTechos]

Thanks for your interest in this project, i have already given components list and diagram download link in description

[@ishthaish]

it would be nice if you explain the circuit logic. great video anyway

[@CreativeTechos]

Thanks for appreciating and watching, 🙂

[@tanmay6725]

Osm dear 💕

[@CreativeTechos]

Thanks for liking

[@gunalan4949]

Can it be used for charging mobile phones?

[@CreativeTechos]

Nope, only charging battery directly

[@khakirukaya4574]

👍👍👍👍👍👍

[@CreativeTechos]

Thanks for watching 🙂

[@mukeshsharma4063]

Kindly uplode 3.7x2 mean's 7.4 volt battery charger with auto cut off Circuit Diagram.

[@CreativeTechos]

No worries, I'll try to upload asap for 2s & 3s too

[@electronicsideas1361]

Which transistor used??

[@CreativeTechos]

MJE13005 NPN Transistor, You can use any NPN Transistor, let me know which one you have?

[@arunk8663]

Charging would require 5V from source, in this circuit there will be a lot of voltage drop then how can the battery be charged ?

[@CreativeTechos]

This circuit requires 5v dc and output voltage is dropped to 4.2 v using TL431 shunt regulator and 680R resistor, with limiting current with 47R.
It requires 4.2v to charge a 3.7v lithium batteries.

[@ranjankumar6964]

Sar 4.2 volt par auto cut chiye

[@baldevbhangu4766]

ਤੁਸੀ ਟਰਾਂਜਿਸਟਰ ਦਾ ਨੰਬਰਨਹੀ ਦਸਿਆ ਵੀਡੀਓ ਕਲੀਅਰ ਬਣਾਇਆ ਕਰੋ ਜੀ

[@dhavalpatel4946]

Same circuit 6v battery auto cut off please request

[@dhavalpatel4946]

Please give me the answer request

[@AdamTheBot]

What's the maximum amp output ?

[@CreativeTechos]

400ma max output current

[@AdamTheBot]

@@CreativeTechos You have a great creativity in yourself . But it's just a waste of time and money tp4056 would cost around like 0.25 USD .And it will give 1A output and if you modify it just by changing resistor it can give 2A output the.

[@stevegrgreece5233]

Circuit Diagram ?

[@nidadhs]

Its not cut off

[@yousefLa52.]

The Anode is not working I don’t know why???

[@CreativeTechos]

Try another TL431 Shut Regulator ic

[@yousefLa52.]

@@CreativeTechos please give me an alternative for Tl 431 ❤️

[@retrogamer790]

Bro i didn't get 4.1 volts as output from it . I only gets 3.6 volts what can i do . What's the problem 😢😢 plzz..... reply plz...

[@CreativeTechos]

Try to check transistor, or tl431 ic

[@sergeypetrov1358]

Сегналезирует что зарядил я но не отключает

[@adityajat587]

Bhai first transistor kon sa hai aapne value to bataye hi nhi

[@CreativeTechos]

Any power transistor can be used, i used 13003 also small one is TL431 shunt regulator or we can say a adjustable zener diode

[@AryanKumar-kn3ys]

Bhai main tumko like bhi kya Aisa stripe bhi Kiya comment bhi kiya hai aur vah ghanta bhi daba Diya

[@mr_ard]

This's cathode led

[@electronicajean727]

Hola amigo 👋

[@CreativeTechos]

Hey hi, nice to see you here 🥰

[@electronicajean727]

Por favor amigo 🙏🙏

[@nipundeewantha4033]

Do I need to change the circuit to add 3 batteries to this circuit?

[@CreativeTechos]

Since this is current limited circuit, you can connect 3 batteries in parallel, but it will take longer to full charge them

[@SureshSharma-hn6lh]

Please frist transister no. in written

[@CreativeTechos]

Part list & Circuit Diagram check in video description.

[@bulentsaf4403]

@@CreativeTechos The first element is not a transistor. İt is a TL431 programmable voltage regulator.

[@CreativeTechos]

The bc547 looking/sized, TO-92 is TL431 Adjustable zener, or original called voltage shunt regulator.

[@Embrostube]

First view

[@CreativeTechos]

Thankyou so much for watching 🙂

[@user-gy9ji3po1z]

👑👑👑👑👑🎶🎶🎶🎶🎶

[@CreativeTechos]

Thanks for watching my friend 🙂

[@dineshkumarsinha9390]

बडा वाला Tragister का क्या नम्बर है बताया नहीं गया है फेक विडियो.

[@akbar5791]

TRANSITOR HAI YA MOSFET VIDEO ME DIKHATE HO MAGAR DIKH NAHI PATA ES LIYE SCREEN PAR BAJU ME ALAG SE JO BHI COMPONENT LAGATE HO SCREEN PAR DIKHANA CHAHIYE VARNA AAP KE VIDEO DEKHNE VALE KO KYA FAIDA

[@Coversongsbyahad]

I thing so This channel maybe fake because i can make more circuit but this channel showing is wrong info only this channel circuit not working i can try many time but result is not working so guys plzz avoid this channel video and save your time and money