Easy. Buy one, configure it the way you would have it and find out. That way you'll know exactly how many hours it would last in your scenario.
Apple's holiday return policy is incredibly long but I'm sure you'll figure out if it's for you in a couple weeks, maybe sooner.
This ^^^...The only way you will know if it works for you is if you take it home. I bought a 15 and 13 (on that now) to test out, then ordered the config I wanted. Even order a non TB (upgraded version last night so I can try that too side by side with this TB. It's the only way I can properly research these with all the controversy. Thanks Apple, hope you like returns!
Overall though, other than being pissed the battery life on the TB falls short of what Apple says it would, it works in my situation because I don't travel a ton with my MBP. Mostly I am home, from couch, to kitchen island to chair so always able to throw it on a charger. In that way the TB works for me, which is why I will likely go with it. My only other concern is that batteries degrade over time so if I am getting 8-9 now what's it look like in 5 years. I have kind of resigned myself to the fact this machine won't last as long as my white MB 13 did (11 years!). So I will buy this with the intent to replace in 5 years if it's pissing me off at that point.
I need a laptop now unfortunately and can't do Windows, just can't. And I love everything about this new MBP with the exception of price and battery life falling short.
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Personally I am fine with Windows 10, for my usage it`s more stable than OS X, nor do I see one OS being significantly better than the other, just different. A notebook with a flat battery is of little use to me...
Q-6
OMG I am laughing, sorry not at you. But seriously, how do you figure W10 is more stable than Mac OS? Give me an example...I own both OS and can tell you thats not my experience. You can spec up whatever machine with Windows, completely pimped out i7 KL 16 GB ram etc, and the equivalent (or less) spec'd MBP will crush it. It's because the way the software controls the hardware, Mac OS does a much better job than Windows ever has, or ever will.
But really enjoy your PC..Not sure if I bought a PC I would come to an Apple site unless I was feeling some buyers remorse.