Ask Different is a question and answer site for power users of Apple hardware and software. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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

share|improve this question
Have you tried another charger? – kba May 1 '13 at 20:38
Charger is in working condition as described in OP. – Buscar웃 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. – Buscar웃 May 2 '13 at 8:49
up vote 1 down vote accepted

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.

share|improve this answer
So it was the charger after all. – Simon May 2 '13 at 11:58

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.