laptop HELP!!

[XxGodJrxX]

Hello everybody, I just replaced the fan on my Averatec laptop using THeSe instructions. I did everything to the letter. I attempted to turn it on, and it would power up, and turn off immedietaly about five seconds later. The battery had ran out a few days ago, so I figured that it just needed to recharge a little bit (even though it is connected to AC power). It has been charging for about an hour and a half, and the laptop still does not turn on. Should I start panicking here?