And do try safe mode. Remember you can blow up an OS with random shutdowns like this.
I have a Lenovo ThinkPad T400 and recently my battery died, not that it lasted long. The device was turned on and i wanted to move it forgetting that it would emmediately lose power once i remove the charger.
I moved it and turned it back on and i got windows to start but it was freezing a lot and it even completely froze so i had to use the power button to turn it off and then on again. Once i turned it back on it would show some start up information but it never gets to the windows loading screen, it just stays dark.
I have no idea how to fix it, any advice is welcome.