Questions tagged [magsafe]

Apple's trademark for magnetically-coupled external power adapters that provide power and charge the batteries in portable Macintosh computers including the MacBook, MacBook Pro, and MacBook Air

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MacBook Air won't turn on without charger plugged in for a while

I charged my Air overnight and when I tried to turn it on in the morning it didn’t boot. I tried plugging in the Magsafe in to find that no light came on. Doing an SMC reset didn’t work. Later on, I ...
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How to cope with MagSafe “withdrawl”?

I've relied upon my MagSafe connection to keep my laptop safe for almost a decade. I got a new MacBook Air and felt funny putting in the USB power cord, but didn't realize just why I felt funny until ...
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59 views

Why does a MacBook throttle without a battery?

According to this posted answer, a MacBook Pro will throttle because otherwise its power consumption might exceed the amount supplied by the AC adapter. However, from my experience, my 2012 MacBook ...
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Is it safe to use frayed MagSafe with outer insulation part is broken

I have a frayed 60w MagSafe with outer insulation / coaxial part is broken where some wires are cut (some are not). There's no problem with inner insulation part and the MagSafe working just fine when ...
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MacBook Pro (15-inch, Early 2011) 85W AXXX compatibility issue [duplicate]

Hi I have bought MacBook Pro (15-inch, Early 2011) recently and there was a problem with it. It was charging really slow. 8 hours of charging for full capacity charge. And then I found out the guy I ...
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MBP retina 2015 won’t power on after SMC reset

I was using my computer while it was plugged in and the light on the Magsafe charging cable was green. I noticed at the top that the battery indicator was at 78% and was not indicating it was charging....
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26 views

What is the name of the long cable/plug attachment on the MacBook MagSafe charger?

My MacBook 2015's MagSafe charger has two attachments for plugging it into the wall: a simple plug, which slides/snaps onto the charging block a loooong cable, one end of which can slide into the ...
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Magsafe 2 45W (A1436) resistor and capacitor value identification

I was trying to replace the charging wire for MagSafe 2 but I accidentally short the circuit which cause 3 resistors and 1 capacitor burned. According to the number recognizable, I guess the biggest ...
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10k views

My MagSafe to MagSafe 2 converter becomes extremely hot. Why?

Out of nothing, my MagSafe to MagSafe2 converter became extremely hot while charging. So hot, I could not even touch it. What could cause it? I've been using it so I can leave multiple old 85W ...
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1answer
152 views

How to fix/clean burnt MagSafe 2 connection

I got some sand in my MagSafe 2 port and as a result the pins got messed up - they look “burnt,” I guess because the electrical flow got messed up. As a result it is hard to get a proper connection, I ...
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59 views

MBP Battery normal but won't charge, pro is now glitchy and slow

I've got a MacBook Pro (mid 2012 using Majave) which was bought reconditioned 2 years ago. It's been great, no issues. I updated a search engine app (Ecosia) while the battery was charging, once full ...
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28 views

Magsafe “L” light takes few seconds before turning off after being unplugged

I've bought the 85w Apple adapter from Amazon warehouse (used). It works fine but when I unplug it, the orange light stays on for few more seconds before turning off, while the old adapter turns off ...
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107 views

Battery Not Charging and Light Not Showing Up Again [duplicate]

I just have got a Macbook Pro Retina 2014. The charger is new and 85 Watt. I have two issues. When I first connected the charger, there was 54% charge on the laptop and for only 1 second the green ...
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Charge a Magsafe MBP with a USBC power supply using an adaptor? [duplicate]

We've got a few newer 15" MBPs (Macbook Pros) in our office, so we have a few USBC MBP chargers in various areas. We also have some older magsafe (not magsafe 2) MBPs which are Late 2012 , 15" MBPs. ...
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MacBook MagSafe 2 Charger only works in wall socket, and not in an extension cable

Edit: OK, the weirdness factor for me has gone off the charts. Now, everything works in all situations I described below 10 mins later. I tried everything I did below several times, you know, measure ...
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Early 2015 Macbook Air (A1466) Not Charging

I have searched far and wide to try and solve this issue but have had 0 luck. I have an early 2015 MacBook Air (A1466) that I've kept in great condition over the years. It's never really left my ...
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7k views

How to earth a MagSafe2 adaptor for 15" MacBook Pro with retina display?

There is no earthing pin, only a socket with a metallic rim. Will it require some special socket that has a projecting earth pin? This is for use in India @ 230W. My adaptor is 85w.
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1answer
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Diagnosing a MacBook that decided to stop powering. (A1342)

I have performed a series of upgrades on my MacBook 2010 (A1342). However, I dropped a screw, opened the device back up and fished it out and then closed it again. But when I then hit the power button,...
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2answers
51 views

Chosing the right charger: MacBook7,1 White A1324

I bought a used MacBook with identifier MacBook7,1, it's the white 2010 version (A1342). However, it already came with an off-brand charger and the text on it has gone washed off it seems, so I can ...
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16 views

Magsafe 2 charger after fully charge the charger light indicator will not light up

After the charger fully charge the MacBook, the light indicator does not change the color for orange to green, the light indicator just show nothings. However, the battery icon is showing in charging ...
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25 views

MacBook battery won't charge but powers on either battery or direct power source

My MacBook won't charge. When I plug the magsafe adapter it doesn't light up (no amber nor green). I tried using a friend's charger to check if the adapter is at fault but the result is the same. So I ...
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86 views

Are frayed cables of Apple lightning cord or Macbook Power Adapter covered by warranty?

It is quite famous that users posted frayed lightning cable or Macbook Power Adapter cable on the Internet or Tumbler. Here is for Google image for lightning, and another one for the Power Adapter. ...
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159 views

Are the 45W, 60W, 85W Power Adapter for Macbook Pro, Macbook Air, interchangeable? [duplicate]

My past experience has been, the 45W Power Adapter was able to charge a Macbook Pro 15 inch fine. (maybe it was just slow but it gets the job done). At the same time, the 85W one worked fine for a ...
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3answers
554 views

How do I fix “Battery is not charging” for 2012 macbook pro retina?

I have a Macbook Pro, and it's battery is not charging. If I switch off the power adapter, the computer instantly switches off. No shut down sequence. I have to plug in the power adapter to switch ...
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1answer
7k views

Can I charge my MacBook Pro 2015 without using MagSafe 2 power port?

I have a MacBook Pro (Retina, 15-inch, Mid 2015). Now after three years of use, the charger isn't responding to being plugged in. I tried to reset the SMC by holding down the left side shift control ...
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2answers
947 views

Macbook Power Adapter Prongs Burnt

I was travelling in China with my Macbook and USB-C Power Adapter. While plugged in at a hotel, the prongs of adapter got burnt. Is it okay to just replace the prongs, or is it likely that the ...
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140 views

Macbook Pro charging port isolation paint dried out

Macbook Pro model A1278 charging port isolation paint dried out. Now it is naked, just magnets. Could this be a problem for computer
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534 views

What is the voltage output of an Apple 85W MagSafe 2 model A1424 without a load?

I’m looking to understand how to test and evaluate chargers so this is a bit technical a problem. Since MagSafe is proprietary, I can’t consult a USB power distribution specification to know how ...
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314 views

MagSafe: Where is the charger ID stored?

I'm about to change my power adapter's cable due to the classic cable fraying. However, according to this, there's data that gets passed around using the 1-Wire protocol. I only see 2 wires on there....
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2answers
1k views

Why doesn't a stripped/cracked MagSafe power cable shock?

Behold, the fate of all (poorly handled) MagSafe power cables: Why doesn't this shock me? I've read that MagSafe cables are low voltage, but I don't even get a tingle. Is there any danger of shock, ...
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16k views

What voltage readings should I get from my 60 watt Magsafe?

What voltage readings should I get from my 60 watt Magsafe if I check the pins with a multimeter? My readings are all below 1 volt (I checked all combinations of pins), but I don't know if this is ...
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161 views

What input voltages does the 85W Magsafe 2 power adapter accept?

I have an 85W Magsafe 2 (A1242, MD506LL) power adapter which has been happily driving my MacBook Pro from US and Canadian 110V AC power. I am about to take this power adapter to Europe. Will I be able ...
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167 views

MacBook Pro won’t charge after a power outage

Here’s the story: I left my MacBook Pro 13 mid 2010 plugged in for the night, and during the night there was a power outage. When I woke up there was no electricity, so I just unplugged the charger ...
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3answers
83 views

What's the best way to wind a MagSafe 2 around the clip and power brick to make it easier to transport?

I'm totally blind, and have a MacBook with MagSafe 2 connected to the extension cable. Would somebody be able to explain how the cable can be wound around the clip on the MagSafe 2 and the pop-out ...
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55 views

Do all Magsafe adapters have removable extension cables?

I have a 60W MagSafe charger (2012 Macbook Pro) and am wondering if the extension cord is removable so that I can just plug the actual "brick" into the wall with a fitted adapter? It doesn't seem like ...
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1answer
94 views

Using Magsafe 1 85w 18.5v adapter for MacBook Pro 2015 15''

I want to use a Magsafe 1 85w 18.5v adapter for MacBook Pro 2015 15", which normally requires a Magsafe 2 85w 20v adapter. Is the voltage difference is going to be an issue?
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2k views

USB to MagSafe 2 Adapter

In case of an emergency, I'd like to use my solar powerbank to charge my Macbook 2015 13". It outputs 2.1A 5V, and I learned that the MBP can be charged with that, but I don't know if that's actually ...
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96 views

MacBook Pro only charges with smaller MagSafe 60W

My MacBook Pro 2.3ghz i7 mid-2012 stopped charging and the light on the charger doesn’t show up anymore. I thought it was the MagSafe 85W and got a new one, but my MBP is still not charging. The ...
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1answer
2k views

Is my Magsafe 2 Power Adapter fake?

Look please at the pictures below. The old charger is genuine when I bought a ME865 (sealed box). Today I bought MF841 (2nd) along with a new one. Is this a fake? AC Charger Information: Connected:...
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MacBook pro charging light turns green and orange after some time

I have three 65 watt L type chargers. Problem is with one of my laptop (MacBook pro 13 mid 2012) during charging, charging indicator light turns green and orange after some minutes(its random time ...
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3answers
33k views

2013 MacBook Air 13" won't boot - green MagSafe LED

I have a 2013 Macbook Air that suddenly won't boot. It was working as of yesterday. I woke up this morning and it wouldn't start. At the time, the Magsafe2 Adapter was not lit up. My wife has a ...
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6answers
44k views

MacBook Air Battery is not charging, no light, still be able to power up, battery condition is normal

I experienced this behavior two days ago (My MacBook Air is late 2011 version (4.2): I can still power up my Mac, with or without MacSafe charger connected Battery is not charging There is no light. ...
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29 views

MacBook Air battery not charging - very strange issues [duplicate]

I have been repairing a water-damaged MacBook Air 2015. Initially the machine would only boot with the battery disconnected and power connected, but then die after around 20 minutes. The MagSafe light ...
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Can an 85w MagSafe charger (model#: A1172) be used safely with a MBPro 13.3” retina? [duplicate]

I’ve read through a few threads on here on this subject - which give very detailed information - but just wish to ask, by way a safety/ sanity check, the following... I have a MacBook Pro 13” Retina ...
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816 views

Burned magsafe dc in board ports: Replace, even if working?

I have noticed that two of the pin plugs on my magsafe dc in board, the ones, which are for power are blacked. As far as I know, this is due to moisture. Right now everything is working fine, however ...
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96 views

Macbook Air 2017 won't charge

I have the MacBook Air 2017 and until today it was working fine. Now, when I plug in the Mag Safe connector the light doesn't turn on nor does the computer detect that I've plugged the cable in. I'...
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1answer
115 views

MacBook Pro not booting

I have a mid 2010 MacBook Pro that won't boot up. Faced this problem quite a while ago, so i sent it in for repair and was told the logic board may need replacement. The store told me they tested my ...
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5answers
77k views

USB-C to MagSafe 2 Adapter

I have a 2015 MacBook Pro with a MagSafe 2 charging cable. My wife has a new MacBook Pro from 2016 with USB-C. I was wondering whether I could technically (in the matter of electronic feasability) use ...
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1answer
114 views

Is this MacBook charger counterfeit?

I bought a supposedly original charger for my MacBookPro9,2 (A7A048) 2012 Macbook pro. It does feature the apple logo etched into the plastic, it also says Designed by Apple in California ...
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24k views

How to reset a magsafe charger that doesn't charge macbook pro's battery?

I have a Magsafe charger (original) that doesn't charge my MacBook Pro's battery. When it is connected, it will allow the machine to switch to power adapter mode (meaning no battery consumption) but ...