>It enables the output when the charger is connected to a Macbook, disables the output when the charger is disconnected I don't think this is actually true...

>It enables the output when the charger is connected to a Macbook, disables the output when the charger is disconnected I don't think this is actually true... I found out by doing something really stupid. The pins on my charger get really dirty, which makes the charger connector get REALLY hot (like burn your finger hot). One day, I was cleaning the pins off with a wire brush, but I [stupidly] forgot to actually UNPLUG THE CHARGER. I knew this because when I applied the brush, (the end of it looks a lot like steel wool), it started sparking against the brush.