How to power a Macbook using a DC power supply!

[@novakordz3928]

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]

So true, so true

[@alejandrinos]

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]

Thank you

[@Killerspieler0815]

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

[@DrMeize]

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 :)

[@Xplol19]

louis is really a master of his craft

[@meemo4556]

Andron MacBeton what do you mean

[@joshuanorris5860]

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

[@zacharytaylor8523]

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

[@juweinert]

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...

[@joelstarkman1019]

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?

[@jkyoft78]

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?

[@엄상덕-m7k]

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]

The fact you wrap cables properly pleases me

[@p_mouse8676]

@ 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)

[@ENIGMALABSSOLARGURU]

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]

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

[@Mordaur]

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

[@kalp0rter]

Yes

[@OKTAYAlizadeh]

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

[@waelelkholi3406]

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

[@tagurumoy1101]

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

[@ranirupeiris]

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

[@tutorialsooswork2085]

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

[@cheeriomartinez]

...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?

[@RaggaDruida]

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]

What did they do?

[@RaggaDruida]

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

[@kerbsidemotors9249]

Disposable

[@MrKillswitch88]

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

[@joncamp9126]

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!

[@carlosportela9233]

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

[@DavidJohnson7738]

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

[@uN1Qu3DZ]

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]

+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

[@whymustinamethischannel3422]

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...

[@juweinert]

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

[@Port.88]

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

[@DocTime56]

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

[@josevitorgomes7083]

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

[@simondsouza549]

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

[@rigo6156]

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

[@renify_]

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

[@THEMACINTOSH25]

What is the expensive power supply name?

[@Kallaste.]

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.

[@pr0xZen]

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?

[@ShakespeareCafe]

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]

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]

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

[@johncoops6897]

@@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]

@@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]

@@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

[@kelenfernandaduartemolina7952]

can I use cables (just cables, not entire adaptors, 85w) being sold at eBay for 4, or 5 Dollars? Looks a good option to have brand new cables that would be used to fix broken adaptors...

[@rossmanngroup]

+Kelen Fernanda Duarte Molina the reason that I don't sell the cables as easy as it would be to shill them is because most of those cables are the 45 to 60 watt ones and not the 85 watt ones. I don't trust the sellers on eBay one bit. The sellers are all clueless and don't even know that the circuitry is in the tip

[@eduardomolinayourmac.repai614]

Hi Louis, just to follow up: I bought bought tips at eBay, and they are working good, even in computers which require 85w...

[@randallgoguen3463]

@@eduardomolinayourmac.repai614 Who was the seller? Thank you in advance.

[@TheDawuu]

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.

[@iDano98]

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

[@ZaiFuchigami]

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)?

[@dumbbellenjoyer]

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

[@jonasczech7237]

wiki2.rossmanngroup.com > "troubleshooting guides"

[@iONsOffroad]

What ya using to supply power and have it show on you computer screen?

[@FMTFXE22]

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

[@tanveerakber948]

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

[@TEDOBEATS]

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

[@daniurbinamusica]

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

[@madhvikumari2048]

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.

[@EricPöggeler_Horror]

a usb ameter wouldnt do the same job?

[@MartinAmbre]

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

[@hectordenicola]

I have a Lenovo T490 laptop that has a 65W adapter with a USB-C connector. I would like to use this adapter with my Macbook Air Retina 12" (2017). Is there any risk in doing this? I have actually connected it and it works fine. But I'd like to know if there might be any risk in the long term if I continue using it. Thanks!

[@rocktime73]

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

[@repsolal]

can the same be done with a usb-c macbook ?

[@joegoh1968]

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.

[@MrRaebild]

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 :)

[@jayontherock]

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

[@rafextreme2879]

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

[@thatradkid]

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

[@vilenius187]

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

[@pranavp8023]

I have a MBP 2013 early model , I’m using it with a genuine 85w adapter without a battery , is it safe to use it for 12hours everyday? Please reply asap

[@DNMEBOY]

Pranav P I cant think of any reason this would not be safe. If you can use it 12 hours a day with a battery while plugged into the power supply you should be able to use it without a battery just fine.

[@johncoops6897]

It may not be safe if you develop RSI or other afflictions due to working on a portable device for so many hours. Buy a proper fucking computer, for gawds sake.

[@parart123]

can i do the same with usb type-c?

[@ashishmalik7447]

Sir which dc Power supply you use??

[@chaivongonsengsy5034]

How to download power world for macbook pro?

[@onlinechatter8578]

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??

[@alexandervogelmann1697]

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?

[@DNMEBOY]

Is it possible to power it without the plug from the power supply? I scored an A1502 today without a power supply. The cover wasn’t screwed in so I’m not hopeful that it works and don’t want to buy an official power supply.

[@dreamerslastgoals4080]

Will a 19.5 v charger work?

[@andrewklug4845]

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.

[@Sparky400]

why are you setting the power supply to 18.5v instead of 16v? doesn't the genuine apple 65 watt charger start at 16v then go up to 18.5v on high power draw? can an air cope with 18.5v? i noticed kits to replace the frayed cable on a macbook charger (they are easy to open. I noticed the are all 85 watt ID. what happens when you put an 85 watt ID on a 45/60 watt brick? i know a 15" macbook will run fine off a 60 watt(i guess 45 too) normal charger just charge slowly but what happens if its a 15" macbook with a 45/60 watt brick and 85 watt ID. will it freak out when it can't get the power its expecting?

[@christopherwatling1847]

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!

[@DuckMaster37]

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

[@GameTL]

Question: can I use 85W 18.5V from a DC power supply to a MacBook 13inch that can only handles 65W, it will just limit the current, because the 65W power supply made for the MacBook 13 inch is 16.5V.

[@peterrutter7332]

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]

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.

[@executive]

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

[@JamEZmusic86]

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 :-/

[@robinmordasiewicz]

Maybe off-topic, but I'm trying to figure out how to power my 15" USB-C Macbook pro from a DC battery pack. Most portable USB-C 3amp chargers are not powerful enough to charge and power the laptop at the same time. Do you have any recommendations for DC battery banks that can charge and power my laptop for a day ?

[@mikegleasonjr]

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

[@dna2087]

SO TRUE !!!

[@darinpesnell7712]

I want to charge while out in the field using LiPo batteries. If I use the 60w, is there any concern with plugging into a 4s (16.8v) battery?

[@ivanvelez7668]

hi, I have question. Can I power up and use my macbook pro without the battery connected to the logic boaed?

[@13richjenn]

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

[@03269696]

hi man thanks for this video,. i have a question can i remove the battery and use the laptop only with the power supply? my battery condition is Replace now and i am looking of a way to charge my mack book pro 2012 without the battery i hope u can answer me man. thanks

[@maryjanecosmiano6874]

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

[@whateverz-876]

Your Tekpower TP3005T is plugged in. Stupid question but if I'm road warrior'ing with my MacBook then can I used this to power my Macbook 13-in 60W after I MacGuevor the tip connector per the video instructions..? If so, as long as I'm just accessing web data with a dim screen how long use might I expect (verrrry ballpark)...? Thanks! ^_^

[@udontknowus2]

Is the Magsafe 2 Tipp telling the macbook the wattage of the charger like magsafe 1 tipps?

[@alsadler4013]

Louis, I just came across your video and am interested in powering my MacBook with 12v while using it on my boat. Looking at my 85W power charger it states it's output is either 18.5 or 16.5v. Will my 12v be enough power for the MacBook Pro?

[@harryhall4001]

The battery on a macbook pro needs more than 12V to charge. You could use a dc-dc boost converter to increase the voltage. You might also have to worry about filtering the power from the boat to make sure it is free of ripples/noise as the boost converter may not remove all of it, and it could interfere with or even damage the macbook pro.

[@PhuketMyMac]

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

[@MobilityElectronics]

Hi, mr. Louis can you please tell how to power on new macbooks with type c?

[@johncoops6897]

You read the instruction manual. Do that just like a normal person, rather than being a lazy fuck. (I wonder if you are still waiting for somebody to answer you, some 2 years later)

[@MobilityElectronics]

John Coops i was asking about how to power up type c devices using laboratory power supply to check consumption. It was not user level question. Don’t go into conclusions and insult without understanding the question. It was 2 years ago, when i was having first experience in repairing type c macbooks. Right now i’m easyly fixing them instagram.com/p/B-IkpUuBn34/. Check my channel here on KZbin, i’m pretty sure that in the future you will think twice, when you will judge someone. I would like to reply you in same way that you do, but my upbringing doesn’t allow me do so.

[@johncoops6897]

@@MobilityElectronics - Well, obviously nobody understood you two years ago and answered you, did they? What makes you think that anyone cares about you spamming your insta or channel here?

[@MobilityElectronics]

John Coops i don’t care about answer.

[@MobilityElectronics]

John Coops you don’t have other things to do than bothering me about my question asked 2 years ago?

[@Infigo96]

Have you found a similar solution for the USB-C based macs? There is a lot of communication in USB-C so something more evolved would probably be needed

[@Ishiku__aka_xchoibitschibihil]

Hampus Baaz hella. F u appel!!

[@Infigo96]

Well, all manufacturers is going the usb-c route since it is a good route for the future where you can ask any buddy for a charger and whatever the laptop it will work and you can charge your phone with the same charger. The problem is that I have a ton of thinkpad chargers and the new ones is going USB-C for charging so a something that uses those old ones with usb-C in the end would be nice for me at least.

[@Infigo96]

You mean charging or do you mean accessories? To charge a laptop through USB-C it starts of talking at lower voltage and when the computer knows it is a 12/20V adapter and it can deliver the power as well as the computer can receive the charge (which not all laptops can) over type-C. First then a charge can be done. Same thing with Thunderbolt, the cable must be able to tell that it can handle thunderbolt over the two acc pins. There is chips at either end of the cable as well as on every type-C port...unless it is a standard USB-C 3.0 port and then it defaults to 5V power out with USB-3.0 protocol like a regular 3.0 port but with the C cable

[@jonny777bike]

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.

[@joblessalex]

Do you need a chip? I have an older powerbook g4 and straight in voltage just won't give me more than .2A....

[@maqabyah2]

Great vid, just leaned a lot

[@johncoops6897]

Stop leaning... you might fall over.

[@tomorrowland8745]

can u tell me ? Can i power on mac book 1181 Black from the battery conector without Mac safe charger and if YES how to do that ? Thanks

[@selbstwaerts]

Came here quite late, but the content is timeless ... :D With my early 2015 Macbook Pro it's like this: the battery stays at its charge as long as I keep the power cord connected. But it does not actually charge. When I keep it plugged in and turned off, sometimes there is a surprise: It charged fully. Happenes every other month for once. I thought it was the battery and replaced it. No effect / same situation. Does have power, works fine, but does not charge. Replacing the power board would be not much of a hassle I think, but could it be the charger? Or how Mercury stays relative to Venus? Any ideas out there? Contraindications: SMC and the other thing are reset a thousand times internal plugs are snugly plugged in, battery is brand new Charging LED is green when connected, then switches to orange as expected

[@Jhale716]

Meditation selbstwärts sounds like your charger is under rated and everything else is/was fine...

[@selbstwaerts]

@@Jhale716 Update: Changed battery, no charging. Changed charging electronics: no charging. But power supply works just fine. So it's something on the main board AND WE HAVE NO LOUIS ROSSMANN IN GERMANY! What an unpreferrable situation...

[@giandenorte]

good video! I am wondering if I can power up my matebook 13 using dc power supply. ( I bought it as defective, without charger and battery and other parts.) the charger port is usb type C. will it still work without the battery. I am planning to use it just like computer.plug and play... thanks

[@zapallalla]

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.

[@berniwwooley3846]

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

[@zohaibkushwaha2451]

Dear Sir I am having some issue with my Macbook Pro 2015 mid the issue is that whenever i unplug the power cord from the machine its turn off (it doesn't not turn on without megsafe power adaptor) even tho its showing 100% battery when i unplug the charger its don't turn off instantly but after 1 to 3 mints some times after 5 mints but after that time it's turn on and does not turn on till i re plugin in the charger. And i also think my charger is non genuine because i have been using this machine from one month its was good and also battery timing was good but i didn't turn it on for one week but after that one week i tired to turn it on it start showing this red error on screen to re plug in the charger after when i re plugin it turns on and show 100% battery even tho im system preferences the battery condition showing normal and also in coconut application showing normal conditions design capacity 56% health 80% like that ... Kindly help me.on this Matter i am waiting for your reply and one more thing i also tried smc so many time nothing happen Best regards Zohaib

[@uyijohn6072]

i want to buy a dc power supply please which do u recommend,i don't do videos

[@raulmorel1]

HiLouis , for the usb-c do you use any dc cable?

[@StevenOBrien]

Apple overengineers the circuitry in the charger to make it more reliable, but they can't come up with an insulation for the DC side cable that doesn't yellow and start falling off after 6 months of use, leading to the connector shorting and overheating. I'm on my fifth charger in seven years for my Macbook Air, and this happens every single time. It's ridiculous.