How to Make a 12 Volt Battery Charger
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- Опубліковано 21 гру 2016
- Hi UA-cam in This video I'm Going to Show you How to Make a 12 Volt Battery Charger
If you Have any Question Please Comment.
New Video - • How to Make a 12V Batt...
Where To Buy "Cheapest"
Aliexpress
1. Dc to Dc Step Down Converter - bit.ly/2ORJuRH
2. Multi-meter - bit.ly/2TXVqlP
3. Alligator Clip - bit.ly/2YNTWOG
Amazon
1. Dc to Dc Step Down Converter - amzn.to/2RfGajU
2. Multi-Meter - amzn.to/2pqKLEF
3. Alligator Clips - amzn.to/2yC1ZkN
Instructables - goo.gl/x6puyK
#Tags
Charge Your Car Battery With Laptop Charger
How to Make a 12 Volt Battery Charger
How to Make a 12 Volt Battery Charger at Home
DIY 12-volt battery Charger
12 Volt Battery Charger
How to Charge SLA Battery
How to make an SLA Battery Charger
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Google Plus: plus.google.com/+SteveWillson... - Наука та технологія
This year's Nobel prize will come to you!
+LearningZone hahaha thanks
LearningZone ļ
LearningZone m
Prolong The Life Of Lithium-ion, Laptop, and Cell Phone Batteries > t.co/mK3KjJd0lr
Steve Willson Kujur Brother, I want to be a battery charger and take power directly from the sweet board and charge the battery
Quick and easy. Best part is the speed at which it is all delivered. Thank you for being quick with things. Its refreshing.
thankyou!!! finally someone who posts this! i wanted to know for so long but this is amazing!
+thekleinevandaal Thanks glad to hear that
thekleinevandaal eksad
steve what is the step down module's number or designation
LM2596 cv/cc
Ruan Kemp we
Thank you so much. Now I can charche my solarpanel batteries in wintertime too. Wow. And so many thanks that you show how to do the connections. Really very good. 👋👋👋👋👋🙋🙋🙋
Thanks for the clear, simple video.
We are wanting to run / charge a portable device powered by a 12v, 7A/H AGM battery, from a car cigarette lighter plug, and this looks like the perfect circuit for limiting Amps and Volts to safe levels.
My question: Is there a built-in function, or a simple modification for disconnecting the load battery if its voltage should fall below the safe minimum for gel batteries? Some customers will likely take the running device out of their utes into the field and may forget/fail to plug it back into the car in time, thus compromising the battery.
Just made my own homemade charger. Soldering is kinda hard I need to practice lol . Thanks for this video.
You can use alligator clips or just try tieing up the wires or do some crude joining, soldering ain't really necassary for smol projects, but shouldn't be ignored
@@vinayakonimani7628 i got better at soldering but thank you.
@@TheCrazy243 cool
You'r presentation is clear and helpful
Thank's a lot
Blagodaram za ubavi i korisni soznanija!
Thanks I have 3 old power backup batteries, the charging section is toast so I need some thing to keep them charged, they power my Ham radios when we are out in the field.
Brilliant video and on the basis of that, I purchased an identical module. alas although I wired it up as shown in the video and the laptop adapter was showing 19.5 volts on multimeter. the red and green leds were lit on the module and despite turning the voltage adjuster both ways. it wouldn't change from showing output of only 1.49 volts. I will be returning the module and hopefully the replacement will work as shown. I raise my hat to you sir on a clear and informative video and only wished I could say yes it works for me.
You work as a professional with science, creativity and mind 🧠 👍👍
Just built it... works great.
good charger circuit
[Tutorial] DIY - HomeMade - How To Make RC Vaterra toy very simple
Thanks !! This is really Helpful...I will now reuse my UPS battery which was lying idle with me for 4-5 months.
Do you have a circuit/process for charging Laptop(20V 2.25Amps) or Mobile (5 Volts 1 Amps). If I can use my UPS battery as a power bank??
+Venkatesh Narayanan yes you can don't worry I'll come up with a new video make sure you subscribe to my channel for feature updates
Thanks...I googled for a while and found in Amazon.in a step down Unit that should work I think. Its INR 93.00
www.amazon.in/Ultra-small-LM2596-adjustable-step-down-Converter/dp/B00LTQU4EQ/ref=sr_1_1?ie=UTF8&qid=1494102001&sr=8-1&keywords=Ultra-small+size+LM2596+DC-DC+3A+adjustable+step-down+power+supply+module%2C+DC-DC+Buck+Converter
Venkatesh Narayanan I know this has been a very long time so probably no longer matters but while yes that one would work it only allows you to adjust the voltage it does not have the adjustable amperage. And that is very very cheap price for those I paid $5 usd for one unit similar to that but it does have a built on voltage monitor screen so I don’t have to use a multimeter.
very good, now i will try to do it - thank you for showing this great video
Hi. Nice video. Where you get that adaptor intalled to change the voltages values?
Hi Steve A great video thank you. Colin
Kitne paise Gai gai
I have been thinking of doing this, but do you need a "battery charger" or can you just use a power supply if you have a overcharge protection module going AFTER the buck converter?
I have used this exact little switchmode module, they are really good BUT they are destroyed almost instantly if the input voltage is removed while a battery is still connected to the output. The addition of a reverse bias protection diode from the output positive terminal to the input positive diode will protect it.
Thanks . I also faced that issue. My buck converter was burnt. Need a reverse current protection .
Add the diode in output between converter and battery...
So a Diode connect the 2 output ( neg and positive) on the board ?
DON'T YOU JUST LOVE UA-cam. THANKS MATE
Very good, simple and efficient
Bro easy tutorial and easy to follow bro you are amazing
Thank you Steve, I am so happy for your prompt response.
Can you pls give me a detailed description of how to accomplish this? I am a novice in this field; but I can fix it if you give me the necessary me guidance especially concerning the installation of a diode.
By the way, will this setup require an inverter for the laptop charger to pick up the energy coming from the solar panel?
Thank you in advance.
+Muhammad Salau yes you need a inverter or a boost converter to boost the 12 v
Connection
1. Solar panels got 2 wire negative and positive
2 . Converter got 2 input and 2 output
3 . Output directly goes to battery okay?
4. Input - connect solar panel positive wire to input positive .
5. Input - connect Solar panal negative wire to a diode before connecting it to input negative .
got it ?
gute Arbeit, Große Hilfe Danke und Grüße aus Germanya :-)
Good work, big help thanks and greetings from Germany :-)
Thanks for this wonderful tutorial - can you let me know If i can charge 2 batteries (12V) with the same configurations
I used this to charge my 12 volt battery on my Bluetooth boombox, works perfect. My fuses were blown on my volt meter and didn't work at first. I use a laptop charger putting out 19 volt and connect it to a 2.5 jack and then to the step down board that brings it down to 12 volts that I need. Thanks Steve
Sorry I realize this is old, but I have a question. What are is the 2.5 jack you add in? I am trying to picture what your saying but don't understand that part. Are you meaning you in-line a 2.5a plug in and then reduce the voltage on the voltage screw like he has? I have a Monster RR2 speaker and I am having a hard time getting it to charge, but I think it is because I am using a 10a 12.5v cord and it states on the back to only use a 15a cable? I don't think it should take as long as it does to charge. It has been plugged in for 15hrs or more and moved one light. That didn't last long at all. I recently purchased the battery so I had it checked at Advance and it is good to go still do didn't hurt it, so do I have to let it charge longer and if so I need to figure out something more practical charging even if I have to charge outside the speaker. It is very easy to access anyways. Thanks in advance, and appreciate your response if your able.
@@wanting2makethemoney always remember that the amps on whatever power supply your using has to be greater than the number of amps on the device that your trying to charge. And that's because amps are pulled out not pushed in like volts so when the device has met its required number of amperage it automatically stops drawing out anymore the device only draws out what it needs and thats why the power plug/supply your using has to have a higher amperage rating than your device. Hope that help. Good luck 👍
very interesting VIDEOS thanks bro
Tinkerer tip: Whenever you need to cut the plug end off a wire, always leave enough wire on the plug just in case you need to splice it back together. At least 2 inches, 4 cm.
TheHelvetican, and for this application he does not need the ferrite core on the power line.
2inches is 5cm
what is the ferrite core used for please?.. Thanks John :)
basically reduces interference caused by current running in cables. So without out it, if you took your laptop's power supply near e.g. a radio it would interfere with the radio station reception.
en.wikipedia.org/wiki/Ferrite_bead
Nice video!!! If there’s a device that runs on a 6V 4.5 AH SLA battery, isn’t it possible to take it out and connect the device leads to a 6V AC to DC power source and run the device through an electric outlet without the battery?
If so should any consideration be made to the Amps of the adapter to be used or any 6V adapter would work?
Hi great vid! And great to see how you did the setting upTHANKS. I blew my meter in Amp before so were a bit nervous! I want to ask why you leave on cable the "lump" by the plug on charger? Has it any use? Seems a bit in the way. thx
The “lump” is an inductor.
Inductor: They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies.
Nice one, Subscribed. Please keep'em comin...
Thanks for the video, I've been wanting to make myself a boom box, and your videos help me.
+Stratton Foster Welcome
Thank you great video
Thank you!
need to ask if the battery is fully charged do u have option to bypass like online UPS
Thanks for the great video. I have a question about a similar subject. I live in an area where there is a constant breeze and want to build a small wind generator. I thought it would be nice to charge my phone from this generator. I am new to electronics so if this seems like a silly question I apologize. Since the power being stored from the wind generator would fluctuate with wind speed, would that harm anything you are charging? Sort of like a power surge. Or are there things you can add to avoid such a situation? Thanks
Don't use the wind power directly. Rectify and charge a battery. Then use the battery
Found two of these in my junk drawer and what to know when using it to power IOT device what does it mean when the blue LED is blinking on the buck booster?
Wow, this is an awesome creative video I had a lot of fun watching it. Thank you for sharing with us! I'm a new here, big like 👍 and stay in touch ❤!
i have two old laptop chargers. I can't wait to order those modules.
Can I connect the battery to the OUT + ,OUT - of DC to DC step down converter directly?
what is exact name of the step up and its amperes and voltage mention so i can try build my own.
In the description
Thank you!!! I will make one vs buy one.
Thank You Dear it’s worked 🎉 😊
thank you. you talked!!!!!!! where can I find the thing you was adjusting??
www.amazon.ca/Yeeco-Converter-1-25-36V-Regulator-Transformer/dp/B06X6BTRBK
I'll try just been very nice and helpful video
awsome my dear i like you video...
Thanks man
Azeem bhai kia 12 volt dc adapter se bike ki bettery charge ki ja skti ha.....?????
Danish laghari 😂😂
Mr engineer up Ka vi video bohut axxa laga
Azeem bhai power supply ke sath bee istarha kar sakte ha kya
Why not setting Amp to max with DC supply so the charging is faster? I enjoy the video and I have learned a lot from you. Thank you.
Thanks dude !! i have made a boombox 100watt. And i was wondering how to make a battery for it. can you tell me does it heat when it charges , and can i use 18650 battery with it to charge them ?
help, I have a large 24 volt lifepo4 battery in my camper but the camper is 12v /13.8v. should I keep a 12v/13.8/ battery charged with a 24 to 13.8v stepdon or just get a giant 13.8 step-down and have no battery?
Excellent video ! 👍🏻
thanks for your video
Great video!!! Where did you get your battery from or where is a cheap place to get one? Doing a project that involves powering a water jet with a 12v battery.
+Daniel Keku you can get it in local shop and do a Google search is a nice idea .
thanks for you great video
can you say me how can i make the module circuit
Can this circuit be used as the power supply of an amplifier i.e 12V 3 amp.
Hi I have the same step down module. When I plug in the battery to charge I still get the red led along with the blue.
What does the red LED mean?
Obviously I'm doing something wrong because on the video you only get the red when you're short circuiting measuring the Amps and it goes to only blue once you plug the battery
Thanks!!!! ;)
Steve, would you have to set the voltage and current again and again every time you connect or charge?
+Zurdo Saenz no not needed ones you set everything you are good to go
parabéns pelo seu trabalho
Thanks for the fantastic solution. Please advise for three queries.
1. Does this unit have auto cut off when charged ?
2. Can I use this option with increased voltage to charge a 24V SLA battery also? If so what changes do I need to do?
3. Any tips on how to build a case to put these into a secure charging station?
I would glue it in a clear rubber made container that I could drill holes into and then water proof the holes.
Hey friend what do you call that device that you connect in order to step down the voltage?
Thanks for the vid! Although my potentiometers aren't working.. >:(
Hey this is a great video what a task is this converter will stop when the The charge is full I want to make sure it's not going to overcharge the battery to make sure there's not gonna be anything dangerous please let me know thank you
?
will it over charge ?
+yan. yan not at all
so it will cat of when the charge is full ? i dont need to add anything ? beside Battery over-discharge protection
?
Thanks. What the board is that? How can I make it?
Hey. I have a 16 volts 3300MA printer charger.
Can i use this without a module?
Does this module had any heating issues, while charging the 12v lead acid battery?
sir i have question i want to make 36v improvise battery to my scoot?
Very nice and simple video, in fact the device that you have used made the video so simple, from where you have bought it and what price?
what about if I want to use that type of battery in my car as a secondary battery to run some accessories, how can charge it in the car?
Very good. Thankyou!!
Alvaro Rivera
You can use the Imax b6 multifunction charger for this as well, but if you get the adaptor one, you need to buy 15v 5amp adaptor for this.
The b6 charger has protection features that this module does not have.
can i use my dc boost controller without an amp controller just.volt to charged my lead acid battery?
can i charge NiCad batteries with it too? I have a Black and Decker 12v powertool set
Sir can i use 19v monitor adaptor, laptop adaptor price are bery high
Thats a great video. can you help me if I can charger my cell phone with a laptop charger. If can increased upto 5 amps.
Thanks for video
Does the step down converter shown automatically stop charging the battery when its fully charged?
WHICH MODULE SHOULD I USE TO PRODUCE MAXIMUM AMPERES , CZ I WANT TO CHARGE BIGGER BATTERY
Thank you I was thinking about making one.
That is a pretty good idea
Do you use a multimeter directly connect battery measure current without load? 3:11
+葉倚嘉 because it's a constant current source don't do it without constant current.
Perfect video man
Thanks man
3:14 how you manage to measure the current directly connecting to the meter? As I know I have to connect on of the terminal to the circuit via multimeter to the battery or power source. Can I measure the of an ac adapter through directly by connecting to a meter?
+Sakhina Khatun no you can't just connect it to ac .
i did because this dc to DC converter capable of doing constant current that's why.
How can I protect the battery from overcharge? (For leaving it charging for too much time).
Hi, I see that the specs for this step-down module are input voltage of 1.25-36V. If I want to charge a 12v SLA battery fully, I'd need to use a power supply of somewhere between ~15v and 36v. What would happen if I used a power supply of less than the float voltage of the battery (14v in the case of this video)? Say if I used a power supply of 13.7V (a common 12v wall wart for some home appliances), with this step down converter (set to 14v) on a 12v battery... from my understanding, the battery would charge to the 13.7v (assuming it was previously lower), and the it would automatically 'float' at this voltage because the charger can not supply electricity to the battery anymore because there is no voltage differential? This would mean that the battery would be nearly fully charged, but I would be in no danger of damaging it, correct?
I understand it would be more useful to just use a higher voltage power supply, but I'm thinking of how friendly this would be for either charging with whatever is on hand, intermittent solar charging, or in case of user error/ignorance.
Good video very helpful, im am going to do what you have done, thanks for the information, jfk
Thank you so much brother
for giving a great knowledge😊😊
if i have an 12 volt adapter for a monitor , can i charge my 12v battery directly without a step down converter ?
hey man great video
can this method be used for long term
and is it safe?
planning on making a portable boombox and using two 12v batteries to power everything. Can this method solve those batteries for long term basis without compromising safety?
+soham bhattacharya yes of course you can I'm using this method over a year now no problems at all . go ahead
+soham bhattacharya yup is very safe no problems at all trust me..
I can't compromise with my viewers safety.
Assalamualaikum
Bhai protection k lie diode zarori h k nai
Ya module protection day ga battery k reverse current sw
what about an overdischarge protection? Excellent video!
+Andrés Alberto Pacheco Herrada see the video in the description
can we use this for Lead acid battery ? I asked this question from aliexpress link which you shared , they said it cant used . Any reason ? then didnt tell me the reason
These low cost, simple switching regulators are brilliant for this kind of job when a DC supply (of the wrong voltage but the right power is available) and I have bought many for many different types of project. Great informational video BUT ...
1. There is simply NO need to cut off the jack plug from the PSU at all. This is plain wasteful and reduces future flexibility. Simply obtain a suitable jack socket and wire THAT to the regulator instead. This means you can keep using your laptop supply ... for other things (e.g. other low cost voltage supplies) if not for supplying your laptop as normal.
2. When using this type of switching regulator one should ALWAYS fit a Schottky diode (or diode pair) between the regulator output and the battery to protect the regulator from probable reverse voltage damage when the mains is deliberately or accidentally disconnected before disconnecting the regulator from the battery. One diode ... a few cents and problem solved, circuit protected.
3. by implementing 1. above, the regulator can also be housed in a plastic weatherproof box together with a low cost voltage or volts/amps display available from eBay or Banggood or others for less than a burger, and can be left connected to a car battery in the car - set the output volts (measured AFTER the Schottky diode) closer to 14.4 volts and the output current limit to 4 or 5 amps for a large, wet tech battery e.g car though. A permanent connection can be made to a dedicated charging socket inside the vehicle cabin ready to just have a laptop supply plugged into it whenever charging is required. No opening the bonnet, no messing with croc clips just plug in, switch on the mains and away to go. Just remember this will NOT provide enough power to start a car, just to recharge the battery over a few HOURS! It's not an instant fix.
4. If you implement 3. above with a volt or volt/amp meter, remember to fit the meter AFTER the output diode otherwise your charge/battery voltage will not show correctly although the amps might (depending on exact meter type and circuit wiring). If you intend to leave it in the vehicle permanently remember to EITHER fit ONE extra lead input to the box - an ignition switched positive feed to the +ve connection on the meter, OR the meter can be connected direct to the incoming supply (voltage permitting) and because of the Schottky diode on the output there will be no power from the battery to power it either..
5. WHATEVER amps you wish to utilise, ensure the input supply can provide them, but remember though that although a 19v, 4A supply will have almost 80 watts available assuming the regulator is 85% efficient (they usually are, or better) then taking a conservative 80% figure ... 80 Watt x 80% = 64 watts at 14.4 volts = 4.4 A. 85% efficiency gives 4.7A and 90% efficiency gives 5A! How can you get more amps out than in? You are converting ENERGY not voltage so look at the power IN compared to the power OUT multiplied by the expected (or measured) efficiency of the regulator.
6. Finally, if you want to be able to charge OTHER types of batteries (e.g. rechargeable electric drill batteries, then simply replacing the two on-board trim pots with the same value panel mounted ones will allow you to set both Volts AND current EXTERNALLY so that your supply can be set for constant volts (lead-acid charging) OR constant current (NiCd or NiMh) but be wary of using it to charge Lion or LiPo batteries/cells due to their much more complex charging criteria. For 18 volt batteries you'll almost certainly need a higher voltage input than 19v. It MAY be sufficient to use 24v but I'd expect you to require a few more than that even ... say 26 to 28 volts.
+Bob Lewis very very informative comment thanks for this information
nice
Just to show I wasn't just trolling the other day with my long comment above I was actually awaiting a couple of parts for my own 12v lead-acid charger based on exactly this idea. The working (but still incomplete) charger is now in use keeping my vehicle battery topped up. Unfortunately, the meter I received from China quite some time ago doesn't appear to be able to display amps so I am awaiting a new one. I also have ordered another regulator since the ones I currently have (several) do not have any current limit setting pot. Consequently I set the output volts a bit lower than where I'd like them to be at 14.1v open circuit and it is keeping my battery very nicely sat at 13.8 to 13.9 with a trickle charge of around 360 to 370 mA (measured with my mutimeter).
Another thing I'm awaiting is a pack of heatsink adhesive pads so that I can properly affix the two heatsinks I have, to the regulator chip. The one finned heatsink you can see is basically just stuck down with silver heatsink compound! You should also be able to see the black "transistor" like object just next to the regulator which is actually the dual Schottky diode I mentioned should be used to protect the circuit from reverse voltage from a still connected battery should the input power be lost or removed before disconnecting the battery itself.
As I mentioned I have the meter connected to confirm the battery voltage but I had a rethink about what I said previously and I power the meter from the incoming supply rather than the battery output as that prevents undue drain on the battery once power is removed. However ... If a 9v battery e.g. a PP3 is connected at the input it can just about power the meter but not provide sufficient voltage for the regulator to operate and the meter would then show the true battery volts. A working ammeter would confirm this of course.
I had to come back and re-edit this due to a complete shambles with Google providing links that didn't work so apologies to anyone who has been confused and also to anyone looking for the other replies i made to try to post pictures - IO deleted those and instead put all the pictures into a public Drive folder: goo.gl/Rn2dXY which hopefully all can access without problem
Bob Lewis make a vid of how to make a 12v fan for a boat please...that would be greatly appreciated as u seem to be very knowledgeable
Jerome Daniel sorry I'm not certain what you actually mean. Is the "boat" 12v or 24 volts? if 24 volts and you need to use a 12 V fan (or fans) then just get one of these little DC to DC regulators from eBay, set the output to 12v and connect as many fans as you need up to the maximum supply capability (with and without appropriate heatsinks as stated previously). if the boat voltage is 12volts already, then just connect your fans direct to the 12v supply.
I’m just trying to charge a push mower battery do I need the 5 amp step down can’t I use a voltage regulator
Thanks
thank you!
Is this have auto cutoff as you have said when battery is fully charged green light appears i want to know that it will stop charging battery or not.
Amazing bro
can i use LM2596 step down converter which is without ampere adjustment and ampere is 3max
can we use this for Lead acid battery ?
hi i,m confujed to measure current by short will you please explane is this method for any multymeter ?
i have buck converters bu i'm always confuje to set current
will you please help me