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MagSafe connector heats up really bad, why is that? I too have the problem of the 85W Magsafe 1 connector getting scaldingly hot charging the MBP either when its on and open or when its closed and hibernating. The connector is cool when charging powered down. To eliminate Magsafe problem, I test with new original piece - same results. Battery is new. Of the 5 pins inside the (Old) Magsafe connector and the DC-in Board (where the Magsafe magnetically connects to the MBP) the 1st and last pins are black, and not shiny brass. I sometimes have to jiggle the connector before the green and orange lights come one. I will try cleaning the contacts with isopropyle alchohol and report if the discolouration cleans off. Could the problem be with the Magsafe DC-in board? How can I tell for sure? What will happen if I just continue to use the new Magsafe with the old board and ignore the hot hot connector? Thanks for the support.
You’ll need to replace the damaged DC-in Board to start things off. But I suspect you have some deeper issues here. Your MagSafe power adapter is likely bad. Is the cord damaged? The cord needs to be smooth along its length and ends not frayed or bumpy. These are signs of a shorted connection within the cord. The next issue is the logic board its self, hopefully the SMC circuit didn’t get damaged but the charging circuit might have. Download this little app so you can see whats happening: CoconutBattery. Post a screen shot in your question of what it shows so we can see it as well.
Hi, I just want to post my answer here as it may help you or someone else. I had the exact same issue. Charging connector gets extremely hot and not just that, you’ve to jimmy the connector every time to see that orange light and to see the charging indicator on your toolbar. I actually thought it might be my battery’s problem or my charger’s problem and that I may have to go to apple store to diagnose it and change it. But before going, I thought of checking out youtube and trying to fix it by myself if possible. As it turns out, it was a ridiculously simple solution. Just clean the pins on the connector and your port on the laptop! As simple as that!! Here is the video which helped me : https://www.youtube.com/watch?v=xm-b01cN… Hope it helps someone :)
The first actionable step is to see to it that the Megasafe is having a contact issue with the the system port where it is plugged. I’d this issue earlier and I noticed that some of the pins on the Megasafe is dented, and observed there are dirts in both Megasafe and the port so I cleaned both using ethyl (thinner) and it starts working properly.
i think you have bad contact with pins on charger or charging port on laptop, i sugest you use eraser to clean up those pins on charging port. Eraser helps me to remove oxides on contacts
I have purchased three brand new MagSafe 2 adapters directly from Apple, and they all get scalding hot. It’s so hot that I feel it might start a fire if it were on paper or even a rug. Also, can some explain what Liaat mean’t when he said, “In my opinion if the Magsafe pins are not depressed, fully popped out and make firm contact with DC-in Board, the problem is 90% solved.” It’s unclear whether he means the pins should be pushed in or popped out. Which is it?
I ended up replacing my Magsafe DC-in board port. It wasn’t as difficult of a process as I thought and I’m using my Mac again to respond to this thread. I ended up replacing the Magsafe connector as well. I had scalded that so bad and burnt up that I was scared to use it without replacing the connector. I ultimately just spliced the new connector wire to my old one, so now my cable is nearly twice as long.
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I certainly recommend trying all of the easy fixes, but I’ve had this problem several times on my mid-2012 15” Pro, and each time it was the DC-in board. I believe the way to tell if it’s the board is when your battery power icon starts acting up. For example, the icon will say you have a 70% charge, but when you momentarily unplug the Magsafe, oops, now it says you have a 45% charge, indicating that something is going on with the board, and it’s simply not sending the proper information to the rest of the computer anymore. Also you can have a situation where the green light lites up, but doesn’t want to switch to orange. Having to wiggle the Magsafe to get it to charge is also a bad sign, and logically would seem to indicate that the problem is mechanical, but you may still need a DC-in board even if all the visible parts look secure. Weird activity with the charging icon is what ultimately tells the tale in my experience. Where exactly the heat comes from in this situation is hard to say, I suspect the input board is no longer properly regulating the rate at which the power is fed into the computer, as I’ve had this same problem when all the pins and contacts look perfectly clean and bright. For the time being that is, until they start looking cooked, and the plastic starts melting around the pins. Holding an ice cube on the Magsafe can be an emergency measure if you have the patience for it. The closer you get to a 100% charge, the cooler the Magsafe will run. But once you get to an indicated 100%, everything can seem fine, until you momentarily disconnect the Magsafe, and suddenly it says you’re down to an 80% charge again. I also suspect that some of the DC-in boards you can get may be counterfeit, and may not hold up as well as the original factory boards, although who can say, as it was the factory board that messed up in the first place.
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