Chosen Solution
I have a Unibody MacBook Pro Mid-2012, It doesn’t seem to charge the battery. The system says “Not Charging”, while the battery is plugged in, and it shuts off randomly (10 minutes to 2 hours uptime). This is quite frustrating, I presumed it was a bad battery, so I ordered a new one. The new battery also didn’t charge, however it stopped the random shutdowns, until it drained to 0%, when the same thing happened. I have tried multiple magsafe adapters, their light is orange for the first second, then turns to green. If I take off the bottom plate I can hear an interval ticking noise near the magsafe port while it’s plugged in. I don’t believe this is normal. My suspicion is the magsafe board is broken, but I’m not sure. I have already tried resetting the SMC. Can anyone else verify the magsafe board is the problem?
Lets check the MagSafe charger and its connections. Review this Apple T/N: Apple Portables: Troubleshooting MagSafe adapters. Let us know if you see something out of place.
Have you try unplugging the Ram then plugging them back? It worked for me.
