I have a 2011 MBP 15" and my battery won't last more than 2-3 hours. The original battery had ~100 charge cycles and showed around 95% health. Nevertheless since it was under AppleCare, Apple decided to replace it, but the problem still persists. Apple says it must be software related... The use case is usually the same, I have Mail and Calendar open and I'm usually conducting a WebEx so I open Safari and log into my WebEx account, then open a new tab and I log into my GoToMyPC account which launches GoToMyPC Viewer where I can interact with my virtual machine that my client has made available to me. In the span of 2-3 hours starting with a 100% full battery my machine dies. I've made sure the backlight on my keyboard is off and my screen brightness is under 50%. I've tried keeping Activity Monitor open to see if there's an abnormal amount of disk activity but everything looks fine. Apple has run multiple diagnostics both hardware and software related and everything checks out. Has anyone experienced severe battery drain using WebEx and / or GoToMyPC?