Bare with me as I try to explain what's going on with my laptop. The model is a Toshiba A205-S4607. I got it back in 2007, it came with Vista but I ended up putting Windows 7 on it about 6 months ago. Anyway, about 2 days ago my laptop had died while I wasn't using it and I plugged it in and it would shut off during boot up at random times. Sometimes it would make it to the desktop for a bit and then shut off again. I tried taking the battery out and starting it up with just the power cord but that produced similar shut offs. I was thinking it was the power supply so I went and purchased a generic one. It worked for a bit but then the laptop shut off again. Today I plugged it in and it powered up normally and I backed up a lot of my files and proceeded to let it charge. It went to 13% charge over about 4 hours, then made it to 95% in about 2 hours after that (these are rough estimates). Now over the past hour or so it has fallen to 82% and is dropping slowly. To me it sounds like a bad battery, but does not explain why it wouldnt boot up on the first day with just the power supply. Should I purchase a new battery or could this be something electrically related inside the computer, like a short or something? Does this model laptop somehow require a partially or somewhat charged battery for startup?
Thanks so much for reading that and Im sorry it was kind of long but I wanted to give a clear story to what has happened so far with this laptop. I know batteries arent supposed to last that long, so Im thinking it could be just be that the battery is done for. I am still confused. Any advice?