Hello! I am now a proud owner of a Macbook Pro 15 2012 non retina 2.6! Got it today and I wanted to do a small bit of Minecraft on it so I plugged it in on my first boot so I could use the Nvidia 650 in it. The Mac says its fully charged. Does this mean I can unplug it now? Also, can I use the Nvidia 650 on battery and get about an hours life out of it? Thanks!