How much battery life are u getting on new mbpr 15" mid2015?

I've had my new MBP 15" 2.8 ghz, 16GB ram and AMD Radeon R9 M370X for around two weeks now. I love the laptop especially switching from a 2011 model. The only negative review I have about it is the battery life. It's not even close to what they advertised. If I'm playing an old game, the battery lasts anywhere from two to three hours. If I'm on Netflix only with no other apps running and the screen light is dimmed to medium, I may reach four to five hours.

When I bought the laptop I already assumed that when they said 9 hours were under optimal conditions (means not using it much) but what I'm getting is half of that. So to answer your question Stazi, compared to what you wrote, me might see only slight improvements in the battery. I hope they find the problem and have them replaced to something better.

This is a bit sad really if that's all you're getting. I have the 2013 version and I certainly get closer to the 9hrs. I honestly think there must be some kind of battery error with that model - have you been to your local Apple store to see if they can have a look at the machine for you?

I have the same issue. Mine is MacBook Pro 15" Mid 2015, 2.5 GHz i7, 16GB, 512G, AMD R9 M370X/ Intel Iris Pro. Did you solve the problem or contact Apple? Thanks.

Anyone ever figure out the problem? I have the same issues. I just purchased a new MBP 15" 2.8 ghz, 16GB ram and AMD Radeon R9 M370X.

Has Apple acknowledged it as a problem or is this just what we're stuck with on this model as far as battery performance?

I figured this problem out on mine, and it was NOT easy. Hope this helps:

I realized that M370X does not switch back to Iris Pro a lot of times, and the only thing that fixes it is a reboot. If you are running any program that monitors Discrete/Integrated video card in use, FORGET ABOUT THEM! Something is up with this MacBook model, and even though its showing that Iris Pro is in use, the AMD is the one actually running, and draining your battery.

Now... HOW CAN YOU CHECK THIS?

1. Download any temperature monitoring software (iStats, etc.). Set one of the temperature sensors to monitor Radeon GPU Diode.

2. If integrated Iris Pro is in use, the temperature of the Radeon should stay around 35 degrees celsius, and your battery life will be 7-9 hours even with 85% brightness.

3. If AMD M370X kicks in, its idle temperature will be in low 50s, and the battery use is cut in half.

4. The only way to fix this is to restart the MacBook, but the problem will come back sooner or later until the next reboot.

I am not sure if any of battery runtime issues are related to this problem, but on my MacBook it is. I am sending it in to get the motherboard replaced. Once it is back, and if I noticed the same problem being present, I am selling this laptop, and will get a 12". Will wait until new 15" model comes out with a different/better GPU implementation.

Please try it out, and let me know if that is the case with your MacBooks.

Thanks

Tim