Hello! And can you make the same simple BMS scheme, with charge control (without discharge control) for 1, 2 or more pieces (16s)? It would be very interesting because Chinese boards sometimes work incorrectly. Thank you.

Buenos días hermano, muy bueno tu circuito, una pregunta me servirá con el transistor BC548? Gracias espero tu respuesta....

I've seen this similar circuit in other videos. The weakness of this circuit, both led's light aren't bright enough as an indicator for 3.7v battery. And using different size of leds or using the clear led type, will change the value of low voltage, even using same color (red and green). I've done the experiments to make the led brighter as indicator but precisely state the low voltage value that I want. And the red led starts on at 3.3v as the low voltage. And at 4.2V, the green led lights brighter. So, it can be used with the general powerbank charging modul which is off at 3.1v because the over-discharge protection feature. Declare the low voltage for 3.7v battery is quite tricky than using this circuit for 9v or 12v battery. So that, this simple circuit is playable. Just understand how the circuit work first.

@caonaido

5 жыл бұрын

Yre

I made this. It is working good. Thanks.Good Job.👍

@farooqdurrani1014

3 жыл бұрын

Please tell input voltage?

what about 12v Battery Charge Level Indicator? Please Let me know

@sunilgawate1088

3 жыл бұрын

show 12 v battery charger lavel

Your videos are always great, so easy to try myself, thanks

@sjtechnology447

5 жыл бұрын

Ya. And you check my channel

@fatemabegum238

3 жыл бұрын

5 v.edktorb

Wow dear good circuit to protect Battery from over changing

Thanks so much for this video

Ante todo muchas gracias por tu vídeo. Tengo un proyecto que me gustaría terminar, se trata de 2 baterías (18650), montadas en serie con su correspondiente BMS, deberían cargar a 7.4v. , tengo un cargador que me dá aprox. 9v. (que pienso sería idóneo), pero lamentablemente me falta un circuito indicador led que me acuse cuando la batería está cargada al 100%, Tendrias alguna solución a mi problema? Muchas gracias y un saludo.

I maked it today for my lithium ion battery it perfectly worked thanks bro your are great

@jebaimmanuel8639

Жыл бұрын

Bro if it work we use other resistor

The introduction picture shows the red wire connected between the two series resistors leading to the green LED. At 2:00, the video shows this wire connected directly to the green LED's pin. Which is correct?

Muito bom meu amigo, vc tem esse esquema para 12v ?

First of all thank you very much for your video. I have a project that I would like to finish, it is about 2 batteries (18650), mounted in series with its corresponding BMS, charged at 7.4v. , I have a charger that gives me approx. 9v. (which I think would be ideal), but unfortunately I am missing an indicator circuit led me to accuse myself when the battery is 100% charged, would you have any solution to my problem? Thank you very much and greetings. 👍👍

I have Subscribed ur channel,

Nice job. Simple circuit. Al though the voltage levels for lithium batteries is 3.7v low (considered dead) and 4.2v high (or fully charged). Commonly battries are labeled with there low or dead voltage. Like a car battery (sla) 12v, technically 11.5v is the low voltage and fully charged is 13.5 to 14.5 volts. execpt for ni-mh, ni-cd and alkaline. There labled voltage is full capacity like a AA. 1.5v

sorry no entiendo donde se conecta la bateria? aqui solo hay una conexion y no se ve a donde va la corriente de carga.

Thanks a lot sir you're so good hope to do this soon God bless you more.

For those of you requesting a 12 volt version. If you understand how this one works, making a 12 volt version would be a piece of cake. If you look at the two LEDs, they both are 3 volt versions (voltage drop across them). Meaning when voltage is applied to the circuit, if the voltage is higher then 3.6 ~ 3.7 volts, the transistor is turned on and the green LED will light. And that is because when the transistor is turned on, it effectively shorts out the Red LED to ground via the Collector Emitter. Once the voltage drops below the 3.6 ~ 3.7 volt range, the transistor is turned off and the voltage then flows through the Red LED because the voltage needed to light the Green LED with the series diode would be below their forward voltage drops added together. It is the combination of LED voltage drops plus the 1N4007 forward voltage drop that allows the circuit function that way. ALL the resistors are current limiting, so that either LED doesn't burn out from the excessive current flow across them. Now make your circuits!

@majidali4262

5 жыл бұрын

But we need 4.2 to charge the cell. Thats not a piece of cake....

@mohdsaleemansari2205

2 жыл бұрын

Love from india

Nice , Bhai , 5 mm ka l e d kitne volt ka aur kitne watt ka lena hai. Please replai .

By this circuit,,can we charge battery?? Or this will only show battery level??

Thank you bro, I understand the connection but I can't understand the testing process by using mutimeter...

@techsartamil4529

3 жыл бұрын

Multimeter find voltage level.

Can I request sir diy blinker for mountain bike using 6 led from lamp shade, power source is from power power bank.tia

Full carga 4.2v

Excellent project

good job

very good

sir, can 1k rasistor be used instead of 220ohm resistor or will you have to do 220ohm only, other than this rasistor cannot be used. please reply.

Nec d882p use kar sakte hain is Ke Badle Mein

Its working! thanks!

great.I wish you had shown a schematic thanks

Will this work on a game boy color with the rechargeable battery mod? Can I wire it directly to the lipo battery?

Nice

Thanks for the idea champ

Dear does this circuit support auto cut off system?

What kind of pasta you use because you soldering very quick.

Thanks, can input 220v ac? Shawon, from Bangladesh

@Techsaw

2 жыл бұрын

No

mister aku mu tanya nih boleh kan? klo lampu led yg dipakai bohlam philips dll,itu voltnya berapa ya ?

Say's that tha what type transistor you used and it's value?

Hi can you show us how to realize passiv cell balancing system for a 4S2P battery 18650 , load to 100 % SOC

Where is charger, where is battery... 🤣 🤣 🤣 🤣

Please were can I connect the supply on the circuit to charge the battery?

Thanks for your help bro.....😍😍

What components should be changed if the green LED becomes 7.4 volts ?

Om kalau untuk charger baterai vave bisa ga ??

Sir agar led Nahi lagaenge to chalega kya led ke bina

Very Nice

220 ki jagaha par 330 ka nhi laga sakte kya haa ya naa answerde plese

What is the input voltage?

Y don't u add some readable schematics ? So we confirm working principles ?

@UnknownPerson-nl7te

4 жыл бұрын

These people don't know anything,just make working and cheap projects but don't have any knowledge about electronics...Just make using datasheets and youtube tutorials

Where to connect the battery for charging , plz reply

Good

Sir where or what gadget have transistor bc457

@bhanuvarun7731

3 жыл бұрын

In home appliances transistor we can't find so we buy from online shopping

I recommend you guys always use bms board, because lithium battery is very dangerous, it's not like old batteries....

I think u could connect relay parallel to green led to cutoff over voltage

@techsartamil4529

3 жыл бұрын

Ok... Relay work good. But use 3v relay.

Thanks for sharing ;-)

Super video bro 🙏🙏🙏🙏

Congo For 1M views...

can i use your charger circuit for Battery NiMH?

This is misinforming, it got full(green) at 3.7 volts when that voltage is lowbat😂

@MrPeloseco

4 жыл бұрын

Just change the 1n4001 diode for another one with a greater voltage drop. I believe 4001 drops 0.7V

@jaiprakashsharma506

4 жыл бұрын

Yes i also faced such a problem..

@jaiprakashsharma506

4 жыл бұрын

This video is wrong..

@nuthinnew3881

3 жыл бұрын

So if I make this and scrap the red LED, it will basically be a low level indicator? Because that's what I need

Can used 548 transistor

Great man

Serve Para Carregar duas Baterias de 7.4v

Thanks

bro, besides the BC547 transistor can or not?

Eres un genio....gracias por tus videos y tu enseñanza....un abrazo calido desde Perú

@juansosa2939

5 жыл бұрын

Donde conecta la batería que se va a cargar

Which wire we connect to battery and Dc

Buenísimo. Muy sencillo!. Felicitaciones- (Very good Very easy!. Congratulations)

Muito legal cara :-D !!

@artur750i3

4 жыл бұрын

Ne vou montar um pra ja nao aguento mais tes baterias no multimetro

What will be the values of all for 4.8v charging battery

Bhai battre aur charging connector ek jagha se hoga

which wire is contet 3.7 betari

battery level indicator waale video me 'BC 546 ka use kar sakte hai ?

Fine

Hi bro charging jak /conector kahapne lagau thada batayega plz because me ek emergency light banana chahatahnu plz batao

Hola tenes algún indicador así pero de 12 volt ESTA GENIAL PODRÍAS PONER EL CIRCUITO DEL VÍDEO NO SE NOTA EL CÓDIGO DE LAS RESISTENCIAS Bs As Argentina

I supposed you are referring to 18650 battery if that so then 3.7v is nominal and 4.2v is full charged

EXCELLENT VIDEO BROTHERS BE CONTINUE MORE TUTORIS

thank for share

is se battery ko charge kr skte hai kya

so nice

Can i use 330ohm resistor?

Olá amigo poderia fzer um vidio pra bateria de carro.so encontro pra bateria de morto

लगता है इस चाचा को EVM पर पूरा भरोसा है

Agora sou escrito parabéns

@jao_baixinho

3 жыл бұрын

É muito bom ficar vendo esses projetos.

Where should we give charger and where should we give load i.e 3.7V battery. This is not explaind properly. Could you please explain it to me here?

Please show the circuit with wires for connecting battery

Can we take transistor from nokia mobile charger

Good evening, I want to know the voltage inside the circuit, how much volt it is, , and it takes a few hours to charge .thank you

@alioz4831

3 жыл бұрын

Süper.

se podra utilizar BC550?

a quien va dirigido estos videos a ingenieros??????? no lo creo y como se carga con corriente alterna corriente directa o energia libre? y lo mas importante como se conecta. lo que es mas impresionante porque dan deditos arriba esto si es impresionante saludos

Good Hoga Sir G

I made this and it worked thanks

This is true for lithium and alkaline batteries?

Superb sir. Short and sweet.

is it okay to use C945?

can I use a C945 Transistor?

Can i use b562c transistor

Yes,this a very easy

Show! I like this. Top

What changes for three 3.7v batteries...?