As the title states my laptop keeps shutting off when it's unplugged and I play games. When it's plugged in it's totally fine. It just shuts off with no warning at all. I noticed it happens under stress in particular.
It's an older laptop (3-4ish years) but it still runs great as it was top of the line at the time.
What could be the problem with this? I'm hoping it's a battery thing and not an internal power supply thing.