I have some questions about the Energy Saver settings that I can hopefully get some help with. When on battery power how can I stop my MBA from going to sleep? I was on battery power and put my computer down while I went out of the room for 10 minutes or so, when I came back the screen was black and I assumed it had just turned itself off. When I hit a key to turn the screen back on I noticed my IRC session had disconnected. Is there anyway I can extend this time limit on battery power? Should I choose the option "Put hard disks to sleep when possible"? I have a 512GB PCIe-based flash storage and would like the hard drive to last as long as possible.