Auto cut off 6V/12V battery charger
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- čas přidán 20. 08. 2024
- Hello friends, today in this video i have shown how to make a simple automatic battery charger circuit for any 6V /12V battery. This circuit needs to be connected between your existing charger and battery. Normally the relay is OFF but when battery voltage increases to the selected voltage the relay energized by the transistor which now disconnect the battery from the charger.
Parts used :-
1. Relay 6V or 12V( as the battery to be charged)
2. Any general purpose NPN transistor
3. 3.3k resistor
4. 10K pot
5. Red led (optional)
6. Resistor for led
Thank you for watching.
Out of all the videos I've watched concerning the Auto Cut-off Battery Chargers, this video is TOTALLY THE BEST - the best by far, and the music is good too. I've watched it and memorized it. Thank you.
me also this is the best video tutorial ive seen.
Tech Ideas, I just watched *2 whole ads* for YOU.
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Hello my friend...thanks a lot...you help me to fix a problem in my battery bank...you are a genius.
In the output from the NC pin of the relay there shoul be a diode to prevent the back current from the battery to the relay coil. Rest is ok, well done
قمت بتنفيذها وهي عملية وذلك بعد معاناة حيث لم يكن لدي ريليه 12 فولت وقمت بفك ريليه 24 فولت وقمت بفك 1000 لفة حتى عملت على 12 فولت ولم يكن لدي نفس الترانزستور لكن قمت بنزع ترانزستورNBN من دارة مستعملة وطبقت الدارة ونجحت أشكرك على هذه الدارة ⚘
If you demonstrate the circuit it will help lots of users.
Max charging voltage is 13.8 volts for the 12 Volt AGM SLA Battery.
Esta muy bien, lo he construido y corta la corriente perfectamente al llegar al voltaje, pero solo tiene un pero, si baja el voltaje de la batería no se rearma automáticamente, hay que reconectar la alimentacion y vuelve a cargar. Igualmente gracias, me ha sido de gran utilidad 😉👍
gracias desde la República Argentina, Buenos Aires
Sir congratulations to you sir for this video uploaded
Excelente video, gracias por compartir. saludos desde Quito Ecuador la Mitad del Mundo.
If the Transformer is only putting out 12 Volts on the Input to your device and a battery requires 14 - 14.4 Volts when charging, does your device resolve this problem? Do I need to insure 14.4 Volts on the Input to your device? And most AGM SLA Batteries cannot charge above 13.8 Volts, but 14.4 Volts is required to get there. Does your device fix this problem? Should I just set the output to 13.8 and be done with it? Let me know. Thanks.
Muchas gracias, ya lo pongo en práctica. Felicitaciones!!!
Where is the circuit diagram ?
Bro, is this circuit turns the phone charger automatically off from charging when a 5v phone charger gets over voltage ? How much values of this transistor and if this transistor not available in my local market so will here can be used another transistor and if can then have to change the others parts values at the same time ? Can I use d882 transistor here ? If can then have to change others parts values at the same time ?
excelente trabajo, voy a armarlo. faltaria indica el valor de la resistencia que va al potenciometro
Sir aapne reply kiya uske liye thank you
If we are using a 12v relay does we want to increase the resistor value
good video
buenas tardes, seria interesante si se pudiera cortar la corriente de suministro de 110 Vls o los 220 Vls de esa forma el transformador no quedaría activo una vez cargada la batería protegiendo y alargando la vida útil del cargador en cuestión, circuito muy interesante y muy bien explicado gracias por el aporte cordiales saludos
it works for me!! thanks
Amazing! I liked the adjustable voltage! What it's name or codification?
What is the purpose of the Diode? Is that for the Transistor? Other videos do not show the use of a Diode. The very next Video after yours has two LED's Red-Green and no Diode. Can you explain this? Thanks.
+Sal Sepulveda
It absorbs the back EMF voltage produced by the relay's coil when the relay is switching off.
And the transistor is saved from sudden reverse voltage.
+Sal Sepulveda
Watch my very next video.
Funciono direito eu estou usando 6 voltes e possível colocar um link verde quando ela estive carregado boa tarde obrigado
I have replicated this circuit and still no luck. I get the red LED on for battery charging but no matter what resistance I set on the variable resistor I can not get the relay to switch from NC to NO. PLEASE HELP, I AM GOING CRAZY trying to make this work.
Thank you and many blessings!
Its Very good thank you!!
Sir can i use 3.7V 100A Battery charge and auto cut it?
The circuit is very simple, nice job. What is the value of the first resistor not the variable resistor. I will be grateful is someone can help me.
Yes bro,
It was 3.3k resistor.
Thank you for watching
I constructed a 2nd Device and seems to work OK, but I still have questions. I thought the diode was there to prevent the battery from backfeeding current in the opposite direction. I have a volt meter on the Input side of your device. At one point, I forgot to disconnect from the battery first and instead disconnected my power supply from the wall outlet. The battery fed current through your device and gave me a volt reading on the Input side of your device. Keep in mind that the LED light on your device never goes on when connected to the battery. It only goes on when I manually turn the screw on the 10k Pot counter-clockwise. Your comments please.
parabéns top amigo gostei muito do jeito que vc fez da pra aprender por isto ganhou mais um escrito boa sorte e que Deus ti abençoe
Why the cordless battery can't work, but when my battery is released from the circuit it works well. thank you
Thanks brother.
sorry to say you did not show how to adjust 14.8 volt. supply voltage to the circuit should be from a variable power supply or from from 12 volt transformer through bridge rectifier. please kindly explain clearly so that a non electronic person can understand. Your circuit is simple and compact but it should work properly.
Good job pro thank you
+Hassan Iad
Thank you
Whether it can charge car batteries? Diode is small
Plzz make a video on uninterrupted power supply circuit using a dpdt relay
hello sir mujhe normally water heater me 15 minit ka timer lagana h jb 15 minutes ho jaye to supply band ho jaye to simply trika btaye washing machine k timer ko laga sakte h kya us ki wiring kaise krni hogi plz bataye.
Bro 6 volt relay 3.7 volt ki battery Ko auto cut kar Sakta hai or 8 volt ya phir 10 volt ki battery Ko auto cut kar Sakta hai 6 volt ka reley please reply
Pues. Buenas tardes. Yo. Lo. Replique de. Tantos. Videos. Paresidos y. Este. Deverdad. Si. Funciona. Como. Espesifica
My friend, would not it be okay to put a diode in the output so there is no battery return? I'm from Brazil, thank you.
+Romualdo Pitarelo
Yes, brilliant idea.
Thank you.
Sir. Agar ye system led driver wali torch ki driver mein kaise hoga? Plz Q k meri torch ki battery bahut kharab hoti hai..
can u give circuit diagram in description please
Circuit please
Can i use DC motor 775 which act as wind turbine as a input in this battery charger?
Great
This circuit can be done 6 0 6 transformer automatic charger for 6 volt
I dont understand.... why do you need a fixed resistor to connect to a variable resistor? sounds redundant to me.
Kreatif 👍👍👍👍👍👍❤️❤️❤️❤️❤️
nice Sir
The existing charger needs to be an AC to12V DC Charger? Can any other charger be used? ie. AC to 19 Volt DC Lap Top Adapter Charger? Let me know. Thanks.
+Sal Sepulveda
Yes it will work
Ye jo resistance hai 3.3 wala ye qwater hai ki haaf wat ka hai
Hello, what needs to be updated in your circuit, if I want use it for batteries in series (300mA with 195VDC in total)?
For a 12V Battery, how many volts goes into this device to make it work - 14.4V ? My batteries can take up to 13.8 Volts, but 14.4 Volts is used to charge them.
+Sal Sepulveda
Yes 14.4 volt is enough.
And thank you
Mere pass 12v 3amp ka adapter or 12v 3000mah lithium ion battery he. Mujhe bataye battery ko kese charge kare with auto-cut off circuit. Pls help me
If input voltage exeeds the voltage set on variable resistor the the relay sets on
can something else be used instead relay?
Does the Input come from a 12V Transformer? Can I place a DC Jack at that end to receive a 12V Transformer Plug?
+Sal Sepulveda
Yes 12v transformer
Thank you sir
can we use separate resistances for 12 volt battery charger in place of 10 k pot
Hii
What is the Difference between AC Wires and DC wires ?
How current flows in them?
Good vídeo,
It can use for charger battery of 18 volts?
Kurang bagus spt bisu tdk ada bicara dan ceritanya tdk jelas
I'm feeding 13.96 volts into the device. When I turn the screw on the 10k Pot, I can hear the Relay click inside. I measure 13.96 volts on the Input side. I have 0.00 Volts on the Output. What's wrong? On the Output negative side, it is soldered at the point where the resistor, transistor and (-) Output come together. Is that OK?
Even I am getting 0.00 volts on output. Why?
How many valtage inputed?
Thanx
Good !
But narration will be even better
Keep the good work up 👍
Thank you
what is the value of resistance between terminal 1 & 2and 2&3 in 10k pot
Hello Tech ideas...what values I must change to control 28 VDC ?
can I use 12 volt relay for 4 volt? how much potentiometer use for 4 volt?
MUITO BOM ,ADOREI,PODERIA DESENVOLVE LO NO PROTEUS E DEPOIS COLOCAR NO YOU TUBE
How can i adjust it to 48 volt battery for e-rickshaw.
This very2 gooddddd....juosssss gandossss....
i want make a charger for batttery 18650 litio this battery must cutoff at 4.2 v, what should change of this project for make that charger?
Pot को कितने volt पर सेट करना होगा , ताकी बॕटरी फुल होनेपर रिले आॕन होता है
I tried this circuit 3 times but its not cutting off the charging. what is wrong please explain the circuit once again and show how to adjust cut off voltage.
mine burn the transistor and doesn't work...
isme transfotmer use nhi hua h kya ????
Hola, ¿cual es el reemplazo del BC547? Desde ya, muchas gracias. (Hi, what is the replacement of the BC547? From already thank you very much
)
+cachoale 1212
Any low power NPN transistor.
Thank you
I've tried every one of these auto cut off circuits and none of them work like shown on the video. This one came close but doesn't cut off until 16 volts. Potentiometer had no effect.
Sounds like a bad pot. Have you tried swapping with a different one?
Can we use this same componants in 6 volt relay
Nobady already tried it?
Can we use this circuit for 150 ah battery
Sir pls 12 v se uper ka charger kese banate h bataye.mere pas 12 v 8 ah ki battery h.n 12 v 1 amp ka charger h.
Can we adjust it to charge 3.7 v battery
3.3 k or ohms
👍👍👍1
Sir mera battery 12 volt 1.4 amp ka h to ye tricks kam karega
3:45
yah wala circuit 8 volt Mein kam Karega kya
Sir 12 v ke charger se 12 v ki battery charge karni h to ye kam karega?
Dips Sharma
Supply voltage needs to above 13.6v then it will work fine
sar muje 6v battry charj sarkit isme 12v riley chalega voltej 9v par chalega sar
Can i do this circuit do charge my12 vlts 65ah battery sir ?
Antes de mais nada parabéns eu não Léo inglês pode traduzi obrigado boa tarde
How I connect motor and switch with this circuit ? Please tell me 🤔🤔🤔
Gostaria que vocês postassem esse vídeo de vocês era ligando a bateria quando ele tá carregado desliga e mostrar também ele acionando quando ela está descarregada que é isso Problema ele não aciona a bateria chega a 87 volts e ele não liga fazer Ligar fácil demais moço coisa mais simples do mundo eu quero ver ligar e quando ela está descarregada não liga de jeito nenhum
i have some question? the input is from the transformer 12v Ac? or 12 Dc? pls reply
Above 14V DC for a 12V battery
@@TechIdeasAG sir what i mean 12volts transformer AC OR DC? into input diode?
because i did not see the bridge diode into transformer.
Awesome, how do we apply this to a 48volts system with a adjustable voltage monitor
+John Nwakanma
Use 47k pot instead of 10k and 10k in place of 3.3k resistor.
And use a 48v relay.
Thank you
Tech Ideas what would the diode size be?
+John Nwakanma
You can use 1n4001 to 1n4007 any diode.
Tech Ideas thanks a million, I am such same works for undervoltage protection.
But when u r charging the battery the battery voltage will be automatically above 13-14volts... Due to the charger .... !!
hi the 12 v relay works to charge 6 v battery too? in ur device
Bro, you have to use 6v relay to charge 6v battery.
What is the purpose of transistor (don't know a lot about electronics)? If I googled right I can use BC-337 too?
+Slaimeris
Yes you can use it.
Tech Ideas And why it's needed?
+Slaimeris
Here it acts as an amplifier.
Full charge ho kar cut off ho jaye charger banaye sir please
Please reply
Sir mere paas 12 volt reley hai to usse me ab circuit bnaouga to aap mujhe he bataye ke kya ham 12 volt auto cut circuit se
10 volt ya to 8 volt pe auto cut kar sakte hai
Please reply
Yes, you can
Oh thank you so much bro