A:Answerwhile gaming- just about 50 minutes (with lower performance)
while watching a video/browsing/regular use- 4 hours
remember, this laptop is a desktop replacement. it is made to be used plugged in.
A:Answeri dont think so. other laptops with the physical one dont have it, and in the picture it doesnt show it. (in the top right corner of the touch pad it would say 'NUM')