3% overnight loss (about 8 hours).
Thanks. It appears I may need to do a reinstall. I get much more than that in just a couple of hours.
3% overnight loss (about 8 hours).
Try a clean install after wiping your SSD. I usually install as new whenever possible.
That's what I always do when setting up a new computer. I don't even migrate any data (my primary computer is an iMac, so on my Macbook Pro I just access data in the cloud).
I'll give it a try this weekend.
UPDATE: I put it to sleep at 8:35am, and it was at 98%. Just woke it up at 10:39am and it is at 95%.
3% seems a lot to lose in just 2 hours.
On 10.12.2 it drained 3% overnight. I have that nap function where it says to get mail and such during sleep turned off.Would love to hear some reports on battery drain during sleep. Want to figure out if the problem I'm having with that (6-8% drain over 2 hours) is isolated to me, or if others are experiencing it too.
Can anyone test that out today?
Agreed! Another great option is Battery Logger, available for $1.99 on the app store. It is specifically designed to measure battery life run time and will keep a log of multiple tests (with the exact start and end battery % before you plug back in included). I've been using this since I got my Macbook Air back in 2013 and it has never given me issues. We really need some hard numbers, not estimates based on wattage because batteries aren't guaranteed to drain in a linear fashion.
Here is an example of the chart on my Macbook Air (which needs a battery replacement soon).
View attachment 678012
Interesting article at Ars Technica of the new MacBook Pro's battery life:
http://arstechnica.com/apple/2016/12/explaining-the-battery-life-problems-with-the-new-macbook-pros/
Takeaway: the CPU is now a larger percentage of the machine's total energy usage compared to older models, meaning there will be greater variance in battery life as people use the processor differently.
Interesting article at Ars Technica of the new MacBook Pro's battery life:
http://arstechnica.com/apple/2016/12/explaining-the-battery-life-problems-with-the-new-macbook-pros/
Takeaway: the CPU is now a larger percentage of the machine's total energy usage compared to older models, meaning there will be greater variance in battery life as people use the processor differently.
Great article. So glad a real, non youtube, OS agnostic journalist explained this so precisely. The battery is what it is. "Nuclear option" - return it if it doesn't meet your needs. No need to come to an Apple forum and flog it to death.
What a nonsense. The point is Apple should have never marketed as 10 hours+ if the CPU varies so much. I am not getting more than 7 hours out of the battery and this is not acceptable - full stop.
I always thought that the 2015 have better battery life. Now it feels like it's an issue of Sierra. Did the newest update fixed your battery life?
Great article. So glad a real, non youtube, OS agnostic journalist explained this so precisely. The battery is what it is. "Nuclear option" - return it if it doesn't meet your needs. No need to come to an Apple forum and flog it to death.
That's what I always do when setting up a new computer. I don't even migrate any data (my primary computer is an iMac, so on my Macbook Pro I just access data in the cloud).
I'll give it a try this weekend.
UPDATE: I put it to sleep at 8:35am, and it was at 98%. Just woke it up at 10:39am and it is at 95%.
3% seems a lot to lose in just 2 hours.
Do you have it set to use Power Nap? Mine isn't, and my battery dropped from 70% to 68% in about 9 1/2 hours overnight. 3% in 2 hours does seem like a lot, so you may have a hardware problem, which I hope you get taken care of.
BTW, I read the following about Power Nap from Apple in a support document from August 2016:
"Computers with 2013 or a later year in the model name use Power Nap until the battery is drained. Computers with 2012 or an earlier year in the model name suspend Power Nap if the battery has a charge of 30% or less."
That seems crazy to me. Why would you want your battery to be completely drained without your knowledge? It makes much more sense to let the computer check email and do the other things that Power Nap allows until the battery reaches a specified threshold.
What do you suggest? They market it as 3-11 hours based on usage? They are only going by industry standards on rating battery life. They clearly outlined how they achieved "up to 10 hours". I think your expectations of Apple are pretty high. They're an impressive company, but don't you think you're taking it kind of far?What a nonsense. The point is Apple should have never marketed as 10 hours+ if the CPU varies so much. I am not getting more than 7 hours out of the battery and this is not acceptable - full stop.
What do you suggest? They market it as 3-11 hours based on usage? They are only going by industry standards on rating battery life. They clearly outlined how they achieved "up to 10 hours". I think your expectations of Apple are pretty high. They're an impressive company, but don't you think you're taking it kind of far?
I think the point is that even if you recreate the test environment Apple used, it's still not possible to achieve 10 hours. 9to5 tested with even more conservative settings and didn't reach 10 hours. I'm confused as to why so many people apologize for Apple - it's strange and bizarre.What do you suggest? They market it as 3-11 hours based on usage? They are only going by industry standards on rating battery life. They clearly outlined how they achieved "up to 10 hours". I think your expectations of Apple are pretty high. They're an impressive company, but don't you think you're taking it kind of far?