How to Make a 12 volt Battery Charger with a Laptop Charger
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- Опубліковано 2 жов 2024
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AliExpress goo.gl/u1Wmoj
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See my blog video:diy-tipstricks...
In this video I'll show you how to charge a 12 volt battery with a laptop charger and a Dc to Dc Step Down Converter
Also in this video I will show and explain how to use the LM2596 module as a voltmeter and as a voltage converter and how to calibrate
Thank you for Watching . And don't forget, Like and Subscribe
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Hi. Thanks for your presentation. Can I connect both my UPS and the module with laptop charger in my 100 ampere battery? I am planning to use my APC ups as an invertor.
Not advisable,, the voltage from the battery can also inter in the output of the module..
Can we use this tip ,to charge a 12,6V li-ion 3S 3P Battery Pack? or is only for Pb battery's?
Hi
For 12.6v lithium batteries you need a 3s BMS. this, when the batteries have been charged, disconnects the power supply to the batteries.
Look here where you can buy
goo.gl/B3bY7J
Attention, lithium batteries are dangerous, you must be well informed before starting a project with these batteries.
@@CMCdiy I have 3s BMS in my pack, I have LM2596 regulator and a laptop charger, If i regulate the module in 12,6 V can i charge my pack ? Is this charger cc/cv?
Nice tutorial. Just you forgot say how voltage is on laptop charger. Thank you.
hi Tomasz
In general, laptop chargers have 19v.
With this module you can get voltage: 1.23V ~19V.
Description of the module
Input voltage: 4V ~ 35V
The output voltage: 1.23V ~ 30V
Output Current: 3A (Max)
Thank you. You're top class eng.
i want get 19.5 volt only what is side diffect this method pls reply fast
Video is better if muted!
Can someone explain it?
I don’t know much about these things. I just need to ask will it cut-off the charging when it’s full? Will it not over charge the battery?
I am planning to buy one. I hear the circuit is short circuit protected. Does anyone know what happens if I connect the battery in reverse polarity by mistake?
your laptop would get fucked if it doesnt have a reverse polarity protection circuit.
been there myself...
How to add auto cutoff when the battery is fully charged?
with this buck converter, no auto cutoff available.. so you must monitoring a voltage for few moments, until reach a fully charging voltage for the battery..
the simple solution is, just use proper adaptor to charging a battery, and your battery must attached to a BMS..
Can i use 21volts sir???
Transformer sir? Godbless..plz reply sir..thank u
Yes you can.
It is important to adjust the voltage. the output voltage should be max 14.5v
Why you are using multi tester and there is a digital voltmeter in you dc step down. And your charger is not enough ampere or currebt to charge that big battery otherwise you charger and your dc step down become hot not safe. Try to use ei transformer atleast 12 amperes 12 volts.
Also you can charge big car battery ( about 70 Ah and more ) but it's took veeeery long time to charge it to fully capacity ... Empty battery drains so much ampers ( more than 10 wich is LOT )
Samo Hraje Friend it's a wrong and expensive trick., Laptop charger have 19/20v about 3.2 to 5amps., A battery need charging voltage 14.4v., your trick is 19v reduce with help a step down buck converter, i think buck converter have about 300 indian money or more., But if u have no money expenses with a good trick...First you will open laptop charger, and check feedback voltage regulator circuit, it's assembly with tl494 three pin small shunt regulator and a poyi coupler via controlled 2/3 resistors with adnesting pin of tl494, varying value of resistors..Then change output voltage..Up/down for you need, just try it. This is very perfect way and no have any expensive., Another good way is computer atx power supply ... Voltage carrying same of this way., Computer power supply have more ampere. Try it
what is the wrong ? u just buy this compact - quality assembly , adjust you are done. flip cart -is ~180 to 300 RS . It is ok.
Can someone explain it?
Awesome 😎👍🆒💯
Thanks for the visit
Is it okay to charge with 14.5v?
My laptop chargeris 14v,I set the output voltage to 13.7, it works fine in the beginning, but later on the output voltatge kept on decreasing to 11v and there is no way to increase or decrease it..any help?
Hi Gorb
batteries need time to charge. if I show you 11v means you have to load it for a while.
BUY BATTERY CHARGER
Jangan bercanda Jang!
Oops.. I searched for "really" diy 12v lithium charger from scratch, not assembling from readymade module.
*caution : dont do it at home*
Can I do it in the shed?
revb0 lol, i do it in school
this module can use with input 18-20v solar panel?
yes you can use it for reduce voltage.. but, you must see specification of the solar panel itself.. how much ampere, volt, you can calculate the watt of solar panel..
so you can find proper buck converter for solar panel from how much watt the buck can provide its volt and ampere..
Can we use for 70 ah battery
Its gonna cook your laptop charger
Bobby how?
I need this serket if you buy i want to perches
@3:01 there is no need for a multimeter. The display is placed for that function.
Of course,😉
he needs the meter to calibrate it first!
Oh man you are awsome,again great project! 👍
Thanks my friend
@@CMCdiy you are welcome,always.Wie immer 😃
What gauge wire are you using ? Thanks.
What do you call the small item you used to plug in you laptop and solder in the buck converter?
12VDC female jack .www.ebay.com/itm/12V-DC-Power-5-5x2-1mm-Pigtail-Female-Female-Cable-Plug-For-CCTV-Camera-TCA/143051717809?hash=item214e8bfcb1:m:muUCRjVsIFpS1yezPBxTO1Q:rk:26:pf:0
I'll just come't on the noise.... A 2a battery charger isn't my thing with a 175A in the bow
The link says its dc to dc stepdown transformer. Does it automatically cut off when the battery is full? Thanks Sir
No for auto cut-off you will need another circuit
Does it disconnect when the battery is fully charged?
no
Never works
When it works it easily blow out
TELL ME WHY DUMMY ..WHAT IS YOUR IDEA THEN ?
Work to drill battery?
Can this unit run 10 hours at 2.0V to charge a gel battery?
could we input only bridge rectified DC voltage???
Friend it's a wrong and expensive trick., Laptop charger have 19/20v about 3.2 to 5amps., A battery need charging voltage 14.4v., your trick is 19v reduce with help a step down buck converter, i think buck converter have about 300 indian money or more., But if u have no money expenses with a good trick...First you will open laptop charger, and check feedback voltage regulator circuit, it's assembly with tl494 three pin small shunt regulator and a opto coupler via controlled 2/3 resistors with adjesting pin of tl494, varying value of resistors..Then change output voltage..Up/down for you need, just try it. This is very perfect way and no have any expensive., Another good way is computer atx power supply ... Voltage varrying same of this way., Computer power supply have more ampere. Try it
Nostalgia Nostalgia wow I didn't know this. Thanks
is that all laptop charger have that function?
The trick is right, but impractical.
This should be how to assemble a battery charger
Where can i get this board..??
many ecommerce sell this board.. you can search step down dc-dc or buck converter for simple searching..
and they are pretty cheap
Can I use this module with 18V 5A transformer base battery charger?
Yes. you can also use this transformer. but do not forget to adjust the corresponding voltage
With a laptop charger and buck boost. Viverter with. Constant currebt and voltage options . All the charger does in this situation is just convert the a.c. to dc
Sir xl6009 dc to dc boost module se apne jo battery dikhai hai vo charg kar sakta hu
G
can I use this module to be installed in the car battery? so that the car battery voltage is stable
what made you think that any car can need another charger inside. Is one inside not sufficient?
Maksudnya buat charge di luar mobil oom? Ya bisa, tapi kalau buat di dalem mobil ya buat apaan juga?
I want to make a power supply for an amplifier 12 v 3 amp output,will this circuit work ?
Yes a DC to DC converter circuit will work you might need a few resistors to limit current to 3A
There comes 12V 5A adapters (ebay) for that purpose, very cheaply, why you want to step it down and all?
you did it wrong, dude..
Kym Cainday can you make a video about how do it correctly?
What's wrong about it ?
Untitled Channel, Use a voltage regulator Ok, it is not using a protection circuit, against short and over load, battery can explode if not have the proper care.
@@leandroinpe some buck converter has such protection(overload) as they said so. But the protection is actually imperfect. I accidentally tried to take 10 amps from it and it died.
THANKS
can it show that battery fully charged?????
You can determine if the battery is fully charged by testing it's voltage. Fully charged battery should show around 14v on multimeter I guess
Can we charge bike battery with this
Yes you can but don't forget to set the voltage about 9V because high voltage can destroy that little battery.
Niște chinezarii nu sunt bune nu cumpărați asemenea tîmpenii am cumpărat 6 nu sunt bune de nimic.
salute to you for your share.I challenge you to share how to build car battery keeper with laptop charger + LM317 + 2.2 ohms + 1N4002. much-much more cheaper than this share.
anto leyo Friend it's a wrong and expensive trick., Laptop charger have 19/20v about 3.2 to 5amps., A battery need charging voltage 14.4v., your trick is 19v reduce with help a step down buck converter, i think buck converter have about 300 indian money or more., But if u have no money expenses with a good trick...First you will open laptop charger, and check feedback voltage regulator circuit, it's assembly with tl494 three pin small shunt regulator and a poyi coupler via controlled 2/3 resistors with adnesting pin of tl494, varying value of resistors..Then change output voltage..Up/down for you need, just try it. This is very perfect way and no have any expensive., Another good way is computer atx power supply ... Voltage carrying same of this way., Computer power supply have more ampere. Try it
DC to DC up module kaha milaga
Ebay
Souq.com
You did NOT MAKE IT, you put it together as the main components were already factory made for you, you just put it together is all.
nothing wrong. For guys like me it is super, u get a quality set also. no hassell
He just give you idea
FO
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