Re: Laptop power adapter..UPDATE!!!
What are the conditions you are keeping your power adapter in? Are you moving it around every day, or do you just leave it at your desk. Also, how often are you using it, is it your primary computer meaning it gets used frequently every day?
I think what he means by a bad power port is it is not working as it should, not that it is not working at all. I don't think that is it, but it could be.
Also, you can not just use the cord. The brick on the cord is actually the power supply.
My guess is what is happening is one of two things
1. you are using it (the laptop) and it (brick on the cord) is simply overheating which is why it goes bad after a few months and stops charging you laptop. (The power supply can get very hot with much stress on them.
2. with allot of movement, you could be shaking something up or loosening the connections.
If you are proficient in soldering, you can do your own repairs easy enough, start off by checking the cord heads themselves, make sure they are firmly connected. Next crack open the brick and look for anything out of the ordinary (burn marks, bloated capacitors, blown resistors, anything that does not belong). That said, if you are not proficient and you mess up or cross connect anything, you may endanger your laptop so... This is probably not the best place to learn if you are not. That said, if you do buy a new one, crack open the old one and scope it out, could be fun.