My Macbook Air has stopped charging completely. Things I have done. 1: Replaced the battery. 2: Replaced the charger. Neither solved the problem, in fact, it created a problem. After changing the battery, the Macbook would not recognise it had a battery, so I reset the SMC and that fixed the not recognising a battery problem. I did manage to get it charging which lasted 5 minutes and the macbook was turned off. It did the same thing with the replacement charger. I,ve since discovered it might be the power port board ? Other than that, I'm all out of ideas.