I've been having problems with my laptop staying charged so I bought a new powercord last week. I've had the new cord 2 days and it started acting up again!
I think either the battery is loose or something inside where the cord plugs in is messed up. It flashes from charging to not charging every few seconds even when it's just sitting on a table! 50% of the time, I can wiggle the cord around and get it to start charging again, but the rest of the time, I have to beat on it before anything works! AHHH I HATE TECHNOLOGY!!!