MacBook turns off when charger is disconnected
Hi,
Around two days ago I was about to move my workhorse to the kitchen, to do some culinary research (read: how to boil potatoes) when my MacBook just turned off when I disconnected the charger. I've had this problem before, which went away after a short while by itself. I just pinned it down to magnets or magic. After a while of being mildly annoyed by it shutting down, I began testing the battery in TechTool, which gave me virtually no information save for the fact that the battery is just maintaining its charge, but not actually getting any.
The battery indicator shows a 100% charge, as does Coconut Battery, which should mean that it's not the SMC. I did an SMC and PRAM reset, though it's unclear if it did anything at all. I'll try an SMC bypass and see if that does anything at all and update on this.
Logic tells me that it's the I/O board which is fooling around, but given my current financial situation, I don't want it to be. So, bottom line, is there any way to be completely sure that it's due to the I/O board, and/or any good way to fix it? Any help will be very appreciated and will hopefully help others in the future too.
Update (11/23/2016)
For the sake of clarity, I'll enclose two Coconut Battery screenshots for future reference.
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7 opmerkingen
Tried nothing worked for me
door shivpal singh
I had this problem too. Tried everything this forum tells you.Finally what worked for me is that I took it to Apple service centre and all he did was to disconnect the battery from inside and reconnect it. Probably there was a loose connection of the Battery inside with the system. Thankfully it worked. I made an effort to come back here and mention this, as this was an easy solution and one may overlook this point.
door suryakalaperi
Thank you for your response.
Did you mean all the battery system or just the connector? Because I tried to pull the connector and then push it strongly to avoid a loose connection, but it didn’t work. I didn’t try to remove the battery though.. If you tell me that removing all the battery system worked for you, I may give it a try..
door Marco Schiavone
Hi, I have a similar issue. My Macbook air works when unplugged but suddenly crashes when it reaches about 80 percent. I never know when the crash will happen but I keep losing important stuff so this is annoying!
door Keep Smiling
Exactly the same behavior, in my case caused by corrosion on the I/O Board. Cleaning with a toothbrush and Iso alcohol, the problem was solved.
door Luis Andrés Pi Velasco
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