I don't know if this has happened to anyone else or if I'm just having the worst luck, but I have already paid for 3 replacement chargers after the one it came with stopped working. I believe it quit working because the wires became loose right where the charger head and chord connect. After that I bought 3 more, two from baystars with a different tip head (it was square instead of an L-tip). Their first one they sent me lasted a few months but after a while it started to make a crackling noise in the charger head before it crapped out, again I feel because the wires became loose or were made loose. The second one I bought lasted barely a week before the same thing happened, except without warning. So I bought a third one from a different store returning to the L-tip believing the square tips had just bad wiring technique or something. Now my L-tip, after only a couple of weeks usage, is starting to crap out. It connects...then disconnects...then connects again. Sometimes it charges for hours, other times just a little bit before turning off. My macbook runs hot a lot of the time, I'm constantly working in Pro Tools or Logic Pro either doing music or post-sound projects. My question is am I having just really terrible luck buying replacement chargers or is my laptop running so hot burning out the chargers?