Laptop shuts down after 5-10minutes of being on battery

My problem is that my laptop will shut down after I unplug it from a power source after 5-10minutes. It will still have sufficient power and it will do a complete shut off(Not a proper shutting off- but instant) I have gone through the power options and nothing there should be causing this. I have also tried updating the drivers. Is there anything else I could try that I haven't already?



Processor: Intel Core i7-2760QM CPU @ 2.40GHz
Memory: 16Gb
OS: Windows 7 Home Premium 64bit
Graphics: Intel HD Graphics 3000 and NVIDIA GeForce GTX 560M