So I got my refurb 2014 rMBP 13" w/ base specs almost a month ago. I upgraded from an air and read that battery life from just browsing the web would average around 8 hours. The battery life I've been getting has been more around 5 hours, and I generally have 3 tabs open at the same time at most. When I notice it draining really quickly from just 3 tabs, it usually eats 1% every 2-3 minutes. I'm planning on bringing it in for a Genius Bar appointment next week, but since I bought it refurbished, would they still replace it immediately with another unit in store if there's something actually wrong with the battery?