I tested it with a full battery, with just the lead, with both, with neither. I held the power button down for 1 minute and it was the same. I even removed the HDD to see if that made a difference but it did the same thing.
My laptop has been working fine and suddenly it powers off after the Samsung/intel screen. It says please wait at the bottom for a few seconds and then powers off. I cannot even reach the part where you press to get into bios.
Any ideas what could be wrong?