I purchased a used Acer aspire 5552 without a charger. Purchased replacement charger. Plugged it in turned it on, have to reset Windows. I turned it off so I could reboot and now when I hit the power button the blue light on the power button comes on, I hear the laptop start (fans and drives) then it just shuts down. I was hoping after a good charge it would start but it still wont. So I looked and you guys say if it charges and won't start probably a battery, but it still won't turn on even when plugged into the power adapter. So help please!!