Chosen Solution
I have for a while had some issues with my Macbook Pro (A1398, EMC 2674), it rarely wants to charge. When i plug the magsafe connector in i don’t get a light. Under system information it says: Battery condition: Normal AC Charger Connected: No AC Charger Charging: No Even thought it is connected, but there is no light on the magsafe plug, and it doesn’t charge. Sometimes i could get away with resetting SMC and sometimes the light comes back on. But now it stopped all together. I can still make it work sometimes by rapidly disconnecting and connecting the magsafe plug, then the light comes back on. My first thought was that the charger was broken, so i tried 2 different Macbook Pro chargers, and they don’t work either. Then i went searching on google for possible issues, and decided to change the DC-Board to a new one, and it still won’t charge sometimes. TL;DR: No magsafe light, tried other chargers, changed DC-Board and still sometimes it wont charge.
Review this Apple T/N to inspect your charger and within it there’s a link to a second T/N that will guide you to a new charger. Be careful! As there are quite a few knockoff’s that would hurt your system! While it’s likely to cost more I would only get the real one directly from Apple: Apple Portables: Troubleshooting MagSafe adapters I would recommend you get this great little app: CoconutBattery. It will allow you to see the health and number of recharge cycles your battery has had as you still may need a new battery here. Paste a screenshot of the main window of the app here for us to see Adding images to an existing question Sporadic charging are difficult problems to diagnose. Did you get your system wet or have a spill of something into the keyboard or trackpad areas? Or, sit the system down on a wet surface? Liquid damage is a common issue with many that have this type of problem. Update (04/11/2018) Well your battery is getting long in the tooth with 720 recharge cycles. You tend to run your system hard as this is a lot of cycles in its lifetime thats about 130 cycles per year! Keep in mind these are when you fully discharge the battery (less than 10%) that the system needs to do a full recharge. Time for a new battery!
@Thomas, any progress on narrowing down what on the logic board it could be? Got the same issue on same model! Because my fans spin normal but macbook only turns on randomly (it seems to get worse) even only running on battery with no charger plugged in, I suspect a GPU or CPU issue and try refluxing those two after the new battery is installed next week.
