How to power a Macbook using a DC power supply!

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How to power a Macbook using a DC power supply!

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Louis Rossmann

Күн бұрын

Пікірлер: 302

@novakordz3928 5 жыл бұрын

Dude ...First of all in 10 years I have not found a person who explains beautifully something factual on youtube and willing to share correct knowledge, it means you ooze confidence and know way more than your presenting here...plus the amount of recycling benefit world wide you bring is massive , the subscribers is awesome , the views on this video way under estimates what your helping us all to achieve. Wonderful Brother thanks for sharing mate your a legend.

@alabrrmrbmmr Жыл бұрын

So true, so true

@alejandrinos 6 жыл бұрын

The way you switch seamlessly from the main camera to overhead and microscope is really cool. No matter what you say, your videos look professional as fuck.

@rossmanngroup 6 жыл бұрын

Thank you

@DrMeize 6 жыл бұрын

wow...I don't know how you can teach this things that are very valuable ?! I am not a tehnician by far...I am not doing this stuff to earn money , in fact the only thing I watch your videos is because I like the way you speak ...but man , this king of small things makes a difference in some services stores where most of them are only entering this beautifull world of repairing stuff :) good work tho' and keep posting vids :)

@thomasm5273 6 жыл бұрын

louis is really a master of his craft

@meemo4556 6 жыл бұрын

Andron MacBeton what do you mean

@joshuanorris5860 5 жыл бұрын

@@meemo4556 r u dumb He means that he knows his shit! Duh.

@Killerspieler0815 4 жыл бұрын

Louis is the master who prevents us from falling to Apple iRippoff

@SlaveToMyStomach Жыл бұрын

Almost 5 years since video was posted and yet I still learned something.

@zacharytaylor8523 6 жыл бұрын

Here is an idea, snip the charger cable from dead chargers add some banana jacks at the end and now you can sell DC power adapters for macs at the store

@kinsi55 6 жыл бұрын

They made it so easy? Would've expected proprietary circuitry in the charger itself and not just the connector.

@rossmanngroup 6 жыл бұрын

Me too!

@Ishiku__aka_xchoibitschibihil 6 жыл бұрын

Louis Rossmann does no one ever think of the little green pinhole LED inside that connector? only Apple does this

@user-nm6oy2fc9t 3 жыл бұрын

I’m using MacBook Pro 15” 2015 without battery. I turned it on like you said. Oh it works! Very good video! Thank you so much! But does it damage computer? Or we only use it for emergency?

@karlmcdonnell5838 6 жыл бұрын

The fact you wrap cables properly pleases me

@Kallaste. 5 жыл бұрын

Wow, this video is the best! You are an expert in what you do AND you are fun to listen to. What a great channel and a great guy.

@juweinert 3 жыл бұрын

Funny that German idiom really fits him well: "Nun komm doch mal runter, von Deinem hohen Ross" 😂

@thatradkid 6 жыл бұрын

really awesome video camera control! and good content. btw if you flip your side cutters so the flat side is out you can strip wires 1st try every try

@p_mouse8676 4 жыл бұрын

@ Louis Rossmann So basically you can convert a regular 19V power supply (let's say a Meanwell or something). Replace the standard cord and connector by a Apple connector and you just got yourself a very cheap adapter for your Mac? For the pros/more advanced people here, you could probably add some extra circuitry to make sure it never overloads (although, in my experience this is normally already implemented) and drop de voltage a 0.5-1V (mostly a diode would do just fine lol)

@DuckMaster37 4 күн бұрын

I usually just buy a bunch of them on eBay, used they are less than $10 each, and they work fine, if kne breaks just replace it

@PhuketMyMac 6 жыл бұрын

Next is how to build a USB-C charger from a DC power supply... thanks for the video!

@berniwwooley3846 2 жыл бұрын

Easy question that no one seems to answer without going round the world that no one can understand when testing the pins on a MagSafe 1 charger what you put multimeter on first pin what should it read 2nd pin what should that read and so on until all 5 pins have been tested

@MrRaebild 6 жыл бұрын

That's what I love about your videos Louis .. the more I see, the more I figure out how little I know :) .. I love it .. there is noting more irritating then watching af video and learn notting :)

@joelstarkman1019 Жыл бұрын

Wondering if it’s possible to connect the MagSafe power cord to a 12VDC boat system. Has anybody tried that, or do I need to use the onboard inverter, generating 120VAC and plug in the Mac power block?

@mikegleasonjr 5 жыл бұрын

3. Using solar/battery and avoid DC -> AC -> DC conversions

@dna2087 4 жыл бұрын

SO TRUE !!!

@jkyoft78 3 жыл бұрын

I would like to charge my MacBook pro from my 12V battery in my RV. What do you suggest? I want to avoid installing a DC to AC inverter on my 12V battery and then plugging in my Safemage 2 into it - I don't want to convert from DC to AC to DC. So the MacBook expects 20V (4.25a) DC, but my battery is only 12V. What can you suggest?

@ChristianGrytten 4 жыл бұрын

THANK YOU, i swapped my DC cable, and it said 60w NO WONDER IT CHARGES SLOW!

@sim6699 6 жыл бұрын

what about people who want to charge their mac from a car cigarette power socket

@suhaspranadev 4 жыл бұрын

simple, feed the 24V input to ltc3780 DC converter, set the voltage on the converter to 16.5V, feed the output to the above MagSafe cable.

@RaggaDruida 6 жыл бұрын

I really, really want to know your opinion on the new Thinkpad lineup they announced for CES... Specially the changes they did to the X2x0 (X270 to S208) line...

@jlan123 6 жыл бұрын

What did they do?

@RaggaDruida 6 жыл бұрын

Soldered on ram, non removable battery, with half the capacity, no Ethernet port...

@kerbsidemotors9249 6 жыл бұрын

Disposable

@MrKillswitch88 6 жыл бұрын

Not worth the money, time, and are frankly mac like cancer which is really sad given how good thinkpads were in the past.

@13richjenn Жыл бұрын

"This wouldn't be Apple if there wasn't unnecessary complicated" - SO TRUE!

@andrewklug4845 2 жыл бұрын

Hey Louis, now that Apple has finally come out with US-C cables that plug into their 140 W bricks ... can you recommend an appropriate third party power supply with a USB-C port that would not require cutting the cable? Keep up the great work.

@dumbbellenjoyer 6 жыл бұрын

Will you ever write a list of diagnostics commonly found via the amps shown?

@jonasczech7237 3 жыл бұрын

wiki2.rossmanngroup.com > "troubleshooting guides"

@simondsouza549 4 жыл бұрын

I have old macbook 2008. It dont have battery and there was problem with keyboard also .i have charger but it not switching on with the charger and solution

@ENIGMALABSSOLARGURU 4 жыл бұрын

hi... louis i have a macbook pro 2011 i have replaced the batteries serval times. how can i bypass the battery and use just charger to operate it.

@tav48 4 жыл бұрын

I have two questions regarding magsafe 1 macbooks / cables / powerbricks 1) If I use a cable from a 60W power brick, do I need to power it with 16.5V or can I also use 18.5v? 2) is 18.5v the upper limit for macbook pro's from 2012 or will they take 20v ? Thanks

@homersimpson9257 6 жыл бұрын

Great Louis ! I’ve learnt exactly what i wanted to know. Thank you

@juweinert 3 жыл бұрын

7:45 Maybe someone can help me here. I have a 15" MBP from 2015 wich does not boot without the battery installed (just as you said, Louis). But I ONLY own genuine 85W Apple AC adapters. It almost fully boots and then turns off again...

@tanveerakber948 Жыл бұрын

thanks bro first time you explain me very easy .. keep it up

@zapallalla 6 жыл бұрын

You can see all that data (and more) from iStat Menus. I've had few macbooks in heavy use and I haven't blown a single charger. The lead gets broken after few years, yes. That's because of mechanical wear but I think that's totally normal thinking how much bending those takes in years.

@steveholvoet6058 6 жыл бұрын

So, if I can get a 85w magsafe cable and a magsafe to magsafe2 adapter, it'll work for any mb, right?

@kalp0rter 3 жыл бұрын

Yes

@jonny777bike 5 жыл бұрын

I imagine that your DC power supply also has current limiting so it will CC when you have over current instead of blowing more fuses or parts. Also if the power supply is programmable you just recall that voltage setting.

@tutorialsooswork2085 3 жыл бұрын

Can I charge a MacBook from 2009 with a charger from other notebook when I loder the plug on the charger

@OKTAYAlizadeh 3 жыл бұрын

after using that tip with power supply .have to set supply to 20v ????

@DocTime56 11 ай бұрын

Does anyone know what voltage does the brick supply before it reaches the magsafe connector?

@DavidJohnson7738 6 жыл бұрын

can you modify the circuit in the tip to allow you to use ANY tip and have it report as an 85W charger?

@uN1Qu3DZ 6 жыл бұрын

Likely yes, but cutting into that metal body to modify it and having it still usable at the end is going to be difficult.

@debug9424 6 жыл бұрын

+David According to this article (link below), the chip inside is a DS2413 "1-Wire Dual Channel Addressable Switch". It can't be rewritten (lasered ROM), but can easily be spoofed with MCU (Arduino, ATINY85, etc). www[dot]righto[dot]com/2013/06/[remove this text]teardown-and-exploration-of-magsafe[dot]html?m=1

@tagurumoy1101 Жыл бұрын

Can you help me convert my macbook charger to barrel connector.. Please... Thank you

@whymustinamethischannel3422 3 ай бұрын

Dealing with power outages. Looking for a way to charge my MPB (2011 13") via DC. Is it possible? A UPS seems overkill, why go from DC battery -> UPS AC -> Magsafe -> DC -> MPB...

@BartBurkhardt 3 жыл бұрын

I didn't know the tip has electronics in it. I have a Macbook Air that won't boot and wont charge. I already bought another magsave power adapter but didn't help. Do you have an idea what could be the problem and if I can make it to work again?

@pr0xZen 3 жыл бұрын

How do you adjust the PSU and tell if it's negotiating (or trying to) full voltage, or stuck in 12/5V etc? Do you always set the PSU to the full (16.5-19V) voltage, and then measure on the board by multimeter?

@joegoh1968 4 жыл бұрын

my wife has been using my MacBook Pro charger to charge her MacBook Air. Sometimes, I use her charger to charge my MacBook Pro. They seem to work but now I am worried if it may have damage the logic board of both machines.

@cheeriomartinez 4 жыл бұрын

...so what if we don't have a huge power supply thing like you do? What should we use? Plug it in straight to the wall?

@waelelkholi3406 Жыл бұрын

will the same technique work for macbook 2018 with magsafe charger?

@joncamp9126 6 ай бұрын

I have a question not pertaining to this exactly. If I have a 18.5v car charger can I cut the barrel connector off and wire the MagSafe connector to it instead. The old MacBook car chargers are hard to find and the ones you can find seem to have bad reviews. I just want to be able to run my laptop off of straight 12v and I’m trying to figure out the best way to go about doing it. Some of the 12v adapters that switch a MagSafe to usbc people reported they were over heating, as that’s what I was going to do before I read that. Thanks for any help!

@Spanto21 3 жыл бұрын

Dear Mr. Rossmann, i'm a big fan (and i don't even know why LoL) even if i'm not at all into mac repair hehehehe. I have a simple question that you have probably talked about before (but i cannot find it). Can/should we use our MacBook Pro plugged in or not ? I really appreciate your answer. Thank you very very much !!

@TheDawuu 2 жыл бұрын

i apprently overcharged something in my mac using wrong dc voltage. now its will only show a light after some time and disconnected battery(can then plug in battery and it works and loads normally until unplugged again). any hints what might be wrong. (i changed dcin board didnt change anything.

@carlosportela9233 Жыл бұрын

Hi Louis, can I connect to a 12v car battery using the same approach to charge and operate a MacBook Pro 16?

@josevitorgomes7083 2 жыл бұрын

A have a macbook type c to fix it here, there's how put in on a power suply?

@onlinechatter8578 2 жыл бұрын

Hi, I have a Macbook A1297 17inch, after my battery unusable or dead and now its auto shutdown or Loop as soon as i enter login password. can u help What may be the problem??

@vilenius187 3 жыл бұрын

I bought a mid 2009 MBP for 50 euros because I want to make music... in my car. Just drive out to some industrial area at night and no one will complain. I wonder if 12+ V will be enough to charge the machine and if it will freak out having only that instead of 14.5 V or whatever it is that comes out of the Magsafe

@JamEZmusic86 3 жыл бұрын

My macbook wont charge all of a sudden, an smc reset normally did the trick but this time i have a dead battery so can not do an smc reset and my charger is useless. Is there something in the battery to tell my charger to not charge? So if i disconnect the battery my charger should power the laptop up? I hope the charger is knackered and not the battery im just in process of ruling out the offenders. I don't know anyone with a magsafe 2 charger though :-/

@alexmacdiver Ай бұрын

Thank You

@executive 3 жыл бұрын

How do I test an Apple power supply to see if it's working (without a working macbook handy) ?

@Port.88 3 жыл бұрын

hello is it possible to turn on macbook air 2013 with no battery inside ?

@ZaiFuchigami 6 жыл бұрын

Could I make a macbook "charger" with a simple LTC3780 CC CV board? I'll just limit the current to 3A and set the voltage to 14.8V (I have a Macbook Air Early 2014)?

@SBHSGA 6 жыл бұрын

it is a good thing that the "smarts" of the MagSafe supplies are in the plug and not in the charger itself.

@B.E.H. 2 жыл бұрын

AMAZING!!! The best channel about "Macs" repair, congrats!!! : ) I bought one flux in your website, waiting arrive. Have some link when to buy MagSafe 1 and 2 both 85w ORIGINAL, please? THANKS!!!

@poggeler_ 4 жыл бұрын

a usb ameter wouldnt do the same job?

@madhvikumari2048 4 жыл бұрын

Hello my friend. I have the same macbook. My battery was swollen and I removed it myself. Now on power cable support it is not going to turn on without battery. What to do, I have followed every techniques from nvram reset to holding down the power button for too long, but nothing worked. Please suggest me any option do that I can start my macbook without battery.

@ranirupeiris 2 жыл бұрын

can i use this methord to type c charger ? please answer

@FadedSparkx86 6 жыл бұрын

Pro Tip to people trying to be thrifty but want to give Apple as little money as possible: Buy ONE good magsafe 1 85w charger, and a magsafe 1 -> 2 adapter. You'll get functionality from both, for both types of machines, with much less money.

@erlanning 4 жыл бұрын

Maybe not the correct forum to ask this... I am looking for a solution where I can plug my Macbook (Air) directly to a battery (charged by Solar). Sure I could use an Inverter from the Battery, but that is inefficient. To specific, I am looking for a DC to DC converter for a Macbook, suggestions? BTW Louis and Team... I love the work that you all are doing. :)

@iDano98 3 жыл бұрын

Can we do a similar thing with a typeC macook forcing the 20v without the typeC controller talking to the charger? I think this will break the computer but i don't know

@calk1calk 6 жыл бұрын

Well, if the iphone battery cable thing really reports battery data it probably doesnt work anymore after plugging it in to 18.5v. Just sayin. But great video, thanks for sharing!

@alexandervogelmann1697 3 жыл бұрын

Hallo, nice video, i am searching for chematics for the apple megasafe 2 85w powersupply. ETON ET856A 94V-0 . I can not find in internet any chematict or brd data for boardview. Do you hav brd views or chematics for this item? Can you help me?

@chaivongonsengsy5034 4 жыл бұрын

How to download power world for macbook pro?

@THEMACINTOSH25 Жыл бұрын

What is the expensive power supply name?

@daniurbinamusica 3 жыл бұрын

Can I use the power supply with an MacBook Air without internal battery? Battery disconnected

@crazyirishman121 6 жыл бұрын

Im enojying the better camera angles. Nice work :)

@RiffLords 5 ай бұрын

Thanks Boss!!

@rigo6156 3 жыл бұрын

Is it possible to remove a battery from a late 2016 15" MacBook Pro battery and charge it?

@leonkernan 6 жыл бұрын

Looks like we have the same taste in keyboards. Although I don't keep flux in mine.

@christopherwatling1847 4 ай бұрын

Hi Louis, Is it possible to use a DC power supply direct to the contact point on the logic board - (taking off the t5 torx screw from the connector on a 2019 touchbar MBP) - I have 4x dead USB-C ports here and cannot seem to get a charge into the battery, or boot at all. Just need to buy some time to get the files off... I was thinking if I lift off the battery connection and simply DC the board directly? Would love your thoughts on this!

@louisslouiss8326 6 жыл бұрын

Finally... Thanks @louis !

@user-fk5ug5wh5c 6 жыл бұрын

Ah yes, the right Video this time.

@maqabyah2 4 жыл бұрын

Great vid, just leaned a lot

@johncoops6897 4 жыл бұрын

Stop leaning... you might fall over.

@call_me_stan5887 6 жыл бұрын

I've seen similar trickery in some old Pentium M Dell Latitude machine. What a crap. The same goes to c-mos battery (totally different stuff than usual CR2032 lithium cell). Duh.

@laurelfleming4664 3 жыл бұрын

when I go to my Macbook display of settings, there is no wattage listed... at all...

@centroanalisiinformatichel8914 3 жыл бұрын

and what about 16.5V ?

@kaalipeeliproductions 4 жыл бұрын

Can I do something so that my MacBook air runs at its base clock speed without the battery ?

@vanhetgoor 6 жыл бұрын

I never knew this before, thanks you told us.

@rotor676 5 жыл бұрын

Thanks for the vids. Your an awesome instructor.

@jayontherock 4 жыл бұрын

please mention how much Amp. to set before attaching a cable to motherboard. 16V and____ Amp..?

@TEDOBEATS 3 жыл бұрын

Is there a way to cut the cable and place a dc plug on the and so I can put into a battery pack? Or a way to go into a powerbank usb-c to be mobile ? Sorry for my bad English

@MartinAmbre 3 жыл бұрын

can u use the magsafe 2 cable to add USB header and use it with power bank

@ababab678 6 жыл бұрын

appreciate it man.

@FMTFXE22 3 жыл бұрын

Can a MacBook be charged off 12 volts like from a car or RV 12 volt systems?

@rafextreme2879 4 жыл бұрын

Is there a way to bypass the magsafe connector in total like either connecting the 2 possitives together and the 2 negatives to a power brick ignoring the middle wire? or converting the connector to a different type like a dc jack? Asking because i got handed a mbp and would like to see it turn on before i invest in it

@ShakespeareCafe 4 жыл бұрын

Can I make a 12 volt car charger with a cigarette lighter adaptor and a MagSafe 1 85 watt cord to charge my 17” MBP in my truck. The brick is basically a transformer that coverts 120 v AC to 12 v DC Thanks

@johncoops6897 4 жыл бұрын

You can make an adaptor however you need to step up the voltage from 12V to 18.5V. This needs to be a reasonable quality "Step Up Converter" or "Boost Converter" that has decent filtering so there's not tons of high frequency noise on the DC output. There are many types of Macbooks, so your may have Magsafe or it may have USB Type-C. If it's USB Tupe-C, you can probably buy something off the shelf to use in the car. Your first step is to work out the connection, the voltage and the current required. God knows what you mean by "bricks" and "120V AC" and "12V DC" - didn't you say you wanted to use it in the truck at 12V?

@rafextreme2879 4 жыл бұрын

@@johncoops6897 hes probably talking about a converter/inverter type of brick. Switching 12v dc to 120v ac

@johncoops6897 4 жыл бұрын

@@rafextreme2879 - perhaps, but that's not what they said. Anyway, it's silly to use an inverter to convert 12V DC from the truck to 120V AC, then use a power supply to convert 120V AC to 18.5V DC for the Macbook. It's far easier (and infinitely more reliable) to convert the 12V DC into 18.5V DC.

@rafextreme2879 4 жыл бұрын

@@johncoops6897 but aside from an inverter what else is there to convert those. 12v to 18v without having to make anything that a person not 100% skilled in that field can do. I mean the inverter sounds like the easier approach.

@johncoops6897 4 жыл бұрын

@@rafextreme2879 - The product required is called a "Boost Converter". The OP wants to end up with an 85W charging capacity, so let's add some "headroom" and double that to 170W, to decide the minimum power needed. OK, here's an Ebay search link for hundreds of typical products. If you pay more than US$8 to $10 you are doing it wrong.... www.ebay.com/sch/i.html?_nkw=%28boost%2C%22step+up%22%29+converter+%2810A%2C200W%29

@peterrutter7332 5 жыл бұрын

Hi great vid can you tell me if i can make a lead like this to power and charge a macbook air at 12v from a car ??

@harryhall4001 4 жыл бұрын

Macbook airs run on 14.85V (or atleast mine does) so you would need something like a boost coverter to increase the voltage. Another issue is that car power is often fluctuates and is noisy due to the electrical components in a car such as the altenator, this is especially bad when starting the car. You would need something to filter the power coming from the car.

@MartinAmbre 4 жыл бұрын

Louis Thanks for the detailed info. I just researched a little harder and found your video. Can you suggest can we convert old Magsafe 2 cables to power through Power Banks and what do I have to note ?

@rafextreme2879 4 жыл бұрын

Match the power output of the original charger (he says it in the vid)

@betohfinger879 6 ай бұрын

thank u!

@dailylegend 5 жыл бұрын

Thank you so much for this video!

@renify_ Жыл бұрын

Hello Louis , can any type c charger can charge macbook pro ?

@rocktime73 4 жыл бұрын

is it possible to use a battery charger for pc on a macbook? obviously replacing the cable

@maryjanecosmiano6874 4 жыл бұрын

hi sir huge fan of yours maybe you can help me.. i have a working a1342 board with a bad lcd and def hdd is there a way that i can turn this into an all in one pc using just the board