My MacBook Pro (2012, Retina) will suddenly not charge when it's turned on.

If I shut it down, it charges normally (orange led, goes green when full).

After I turn it on it keeps the green led on until OSX starts up, then the light goes off.

I haven't seen anything suspicious in the console. I also did a PRAM/SMC reset.

OSX 10.8.3

  • Have you tried another charger? – kba May 1 '13 at 20:38
  • Charger is in working condition as described in OP. – Ruskes May 1 '13 at 22:04
  • I'd recommend trying a different charger to rule out your charger being the issue here. – pknz May 2 '13 at 3:16
  • Unfortunately I don't have another charger. – laktak May 2 '13 at 6:25
  • To check if it is the charger (overloaded) without having a spare one: Check if it is getting hot and Reduce the load by minimizing screen brightness to zero. Also look what is the charger model, in Watts. – Ruskes May 2 '13 at 8:49

I had the same problem and have tried everything, with no result. Suddenly, I reset the SMC without turning off the MacBook Pro, i.e. with the MBP on and the charger plugged, I hit Shift+Ctrl+Alt+ON for ten seconds (the MBP switches off instantaneously). After restarting, the mac was charging properly.


I went to Apple Support and even though it looked like a software issue, they just exchanged the power supply and now it's working perfectly again.

  • So it was the charger after all. – Simon May 2 '13 at 11:58

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