My MagSafe connector stopped lighting and I took it to the Apple store. The Genius took out the battery and connected up the cable and turned on the MacBook, which worked. That proved that the charger was OK. It turned out to be a small PC board inside the MacBook. He told me that little PC board only operates the LED and does nothing else. I had it replaced, but the repair was pretty expensive (about $100 as I recall), so you might want to live without the LED.