Toshiba Satellite C55t-A5222. Its been dropped a couple of times due to children. It has started doing it where it is plugged, but a half hour later, it shuts down. Sometimes it just shuts down, sometimes it blue screens. Is it the battery? When its running, it runs fine. It's just getting it to stay on. Sometimes it's able to go a few hours (rarely) without shutting off. Have tried many things regarding the programs on the computer thinking it might have been a setting. Nope. Has a piece gone bad/needs to be replaced?