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Battery draining incredibly fast

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I was on the airplane a few days ago (12 hours flight) and wanted to get some work done with Affinity Publisher. I have a MacBook Pro 2018 13 inch with battery cycle count 166 condition normal.

Battery went from 100 % full to empty in less than 2 hours, with Wifi turned off and screen brightness at 4 dots (maybe 20 %). All other apps closed (apart from Apple Pages and Finder).  I was quite disappointed since I could not get much work done.

I tried that again at home and battery drained equally fast. You can almost watch the battery indicator count down. Simple text editing in AP, nothing fancy.

Is this an issue? How is it even possible to drain the battery that fast? I think not even FCPX can drain the battery that fast. Will this be addressed in a future update? Are there some preferences I could change to slow down the fast drain?

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There may be an issue with the video card being kept active. Perhaps this thread is related:

That is the kind of thing that that Serif would fix, but as you asked what you can do, you could try turning off hardware acceleration or try experimenting with the display method, both of which affect the GPU. You might find a solution that works better (or maybe not, but worth a try).

If you do find something that works, I encourage you to report back, because that could be useful information in identifying a potential bug.

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Affinity is hungry indeed but should not cause your experience. A preference of a particular processor or graphic card does not cause the issue.

I wonder which application / which processes cause your battery drain that fast. Using Affinity with this fast drain doesn't mean necessarily it's caused by Affinity only or mainly.

Unfortunately macbooks can show fast battery drain for various, often unspecified reasons, e.g. reported in this Apple forums thread "Macbook pro 2018 battery drain fast"    https://discussions.apple.com/thread/8504963


A quick solution can be to reset the SMC of your macbook.  ...  https://support.apple.com/en-gb/HT201295

If the SMC reset does not help, you might keep an eye on the energy consumption of your Macbook under "Activity Monitor.app" > "Energy" at various moments and for a period of hours.  https://support.apple.com/en-us/HT201464

For further information about the app this article might be useful: "What does the OS X Activity Monitor’s “Energy Impact” actually measure?"  ... https://blog.mozilla.org/nnethercote/2015/08/26/what-does-the-os-x-activity-monitors-energy-impact-actually-measure/

Note: In the "Activity Monitor", the energy impact value has no unit and is a relative value, but not a percentage of 100, and it is a mixture that currently appears to be an unspecified mixture. – When I open the APub app with a multi-page, image-intensive document, the value is shown between 100 and 400 for a few seconds, when working with text between 10 and 100, on idle (= app nap) around 0–1.

macOS 10.14.6, Macbook Pro Retina 15" + Eizo 27" // Affinity preferred in Separated Mode + Merged Windows

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