I'm struggling to believe that I'm stretching the marks of my macbook that burns the battery quickly. Which is why I am posting, to get the opinion of the community to see if I should see a Genius bar or not over this. Btw, I did run the test (Restart | Hold D Key) and passed every testing. Currently, I have Safari, Google Chrome, HipChat, Microsoft Word & Excel 2016 open. I'm browsing through non-video / audio sites, all content driven and responding to emails through gmail, while writing. My brightness is around 80%. I can charge my laptop to 100%, leave it charged for an hour or so and when I unplug within about 1 hour my battery will drop to 82%. From there, by the next hour I'm in the 50's and it get's worse over time. I know the specs said 9+ hours of battery life, I'm lucky to get 4.5. Is it something I'm doing? I've checked my Activity Monitor and everything appears to be on the up and up. Just strange!