Hello, I received my 2015 rMBP 15" base model (no discrete GPU), and the battery life doesn't seem to be as high as Apple quotes it. It says I have about 6.5 hours of battery remaining without Safari open. Any ideas if this could be faulty hardware? Battery health is at 100% with only 7 cycles. See attached screenshots. Screen brightness is at 50% Install was done clean, no transfer of files or anything from another Mac. It is updated to OS X 10.11.5. Thanks!