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...
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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
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[@DiyElectronic]

Circuit Diagram -:

[@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..

[@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)!!

[@satfamily89]

The title is clear, he made charger not auto cut off

[@Nation_First269]

Not working properly 😕

[@gkolko]

İ think, Not a very reliable video for li-ion batteries.

[@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.

[@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?????

[@harishnaik8844]

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

[@khalidmehmood2128]

No working properly.

[@TechniCraftYT]

The battery will auto cut wihle the output only 4.5v is.

[@basitawan3489]

Superb....its amazing

[@saraswatinaikar9859]

Thank you for making this vedio

[@urla.tejaswitaruneee2483]

Good Job bro .

[@srtvserials]

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

[@jacobwattimury5162]

Tq v'much for sharing. Gby ❤️

[@cholito1949]

Excelente video.

[@robchitoe7199]

Very good!

[@a.k.m.manzurmurshed210]

Nice. From Bangladesh

[@anuproy6148]

Very nice video please diagram and pcb layout thank u sir