ok i just got a sage np9150 / clevo p150em with the amd 7970m. now i was testing the battery on it and i was playing titianfall, and after about 7mins of intense play my laptop shut down completely. now when its plugged up it has no problem running any game at max (just about any game) now whould i try urning down the graphics and seeing if that helps, its no over heating or anything its on a cooling pad blew all the dust out when i first got it and put new thermal paste on it.
Most likely the thermal protection for the battery kicked in. There may be a problem with the battery pack if it doesn't do it while on AC power. Could also be an advanced setting under power in control panel. It's probably not a good idea to do intensive gaming off the battery anyhow. I'd probably replace the battery. Sometimes a battery that's imprinted a bad "memory" can show a full charge when it's really almost dead and next thing you know it shuts down.
I think the battery was getting overloaded, i turned the settings on the power to power saving so the processor does go into turbo mode and stays low. everything worked fine but yah need a new battery this battery only hold 54wh and a new one hold 74 i got about 30mins of play out of it.