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Power management for mobile computing devices

Power management for mobile computing devices

First principles of computer device management - there are three main areas you use power:

  • Background app processing - CPU usage

  • Screen - brighter and more screen time, means more power usage

  • Radio signals, cellular connection, wifi and bluetooth all use power.

The first thing to wear out in most mobile computing devices is the battery. Rechargeable batteries only support a certain number charge cycles before the battery needs replacement. So from those core principles let us begin.

And it is probably better on your eyes too.

Now some naughty vendors like iNTERFACEWARE (opps that’s me) and Confluence don’t support a dark mode. But thankfully many browsers support plugins like the dark reader for Chrome. Dark Reader - Chrome Web Store

It’s actually better on your eyes and easier to read in bright environments - so you can reduce the the overall consumption of your laptop.

Cleaning your screen means you can make your screen less bright too.

You may have to muck around with settings for individual apps.

Like the first model T - black is it!

And they distract you from your work.

Screenshot 2024-02-06 at 1.19.23 PM.png

Another technique I figured out was to use the Apple Shortcuts app to turn on low power mode at close to 100% power. This is how I do it:

 

And the detail:

 

You can switch this on:

Screenshot 2024-02-06 at 1.21.47 PM.png

 

I think WIFI takes less energy than cellular protocols - so switch those off if you don’t need them.

Bluetooth isn’t always needed if you are not using bluetooth accessories

In theory at least. You’d really need to emperically test that to see for real.

Most mobile operating systems provide good tools for looking at this like the Activity Monitor in Mac OS X.

I think the Opera browser is a good candidate for this. Safari is better optimized for Mac OS than Chrome. The crowd sourced wisdom is that Safari is best. That wisdom is from Chat GPT and is probably more a reflection of Apple’s marketing budget.

Chrome is hard to avoid since it is becoming the new defacto standard for the web - not the best in the long run for the industry.

Close unused tabs!

This clears out rogue processes which are consuming CPU etc. See Reboot your mac every day for a clean fresh start

I just removed this one from my desktop. That stuff consumes energy even if they are amusing.

11c9e119-ca58-42ac-95db-d987e53e1bbd.mp4

 

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