Hopefully this is simple enough to answer. I've had my MBP for a little over a month now, is it normal for the system to lose about 1% of it's battery over the night when the computer is unplugged and turned off? I can be at 100% one day, the next day after I turn it back on it'll show 99%, then 98%, etc. I know it doesn't start charging until it's below 95% so that's normal. But could this be a battery leak of some kind?