Toshiba runs 30 sec shuts down

I have a Toshiba 1805-s that goes on rampage of powering down. Not an oganized windows shutdown. It does this when I am onsite and need it to print pictures for my photo business. I re-power up and it does not make it out of the boot-up process, I'm looking at a black screen. Its just as if you pulled the battery out during the boot up without being plugged into the wall. When I try to recreate the problem at home it does not. It happened while plugged into a wall socket. The battery is good. I do not know where to look?

Thanks
DC

 

Overheating, or bad battery.