All You Need to Know about Mac Power Management
Basic Energy Saving Options
Everything you need for power management is found in Energy Saver. Just go to System Preferences and look for the light bulb icon. If you’re a MacBook user, energy saving options can help extend your laptop’s battery life. Keep in mind that Macs with batteries (like MacBooks) and those without (like iMacs) will feature slightly different settings.
This feature helps you choose when your Mac’s display goes to sleep. Turning the screen off is useful when your Mac is performing a task but you don’t need to see on screen at that moment (like playing music). Even though the display goes dark in Sleep mode, all active tasks are still running in the background. Attention MacBook owners — remember this battery saving trick.
Put hard disks to sleep when possible
Select this one if you want your hard drive to sleep when it’s inactive. However, if your Mac has an SSD drive, you won’t be able to use this option.
Wake for Network Access
Enable this if you want other users to access your computer’s shared resources. In a nutshell, it means that other users on the same network are allowed to use devices like shared printers or iTunes playlist while your device is in the sleep mode.
Startup automatically after power failure
The name of this option speaks for itself. If your electricity is suddenly cut off, then your desktop computer starts up automatically after the power interruption.
You might see other useful options depending on your iMac model. For iMac and other Mac desktops, the Energy Saver window looks similar to what we’ve described above.
Energy Saver Preferences on Mac Laptops
Running a MacBook requires much more power management options, which is why the Energy Saver window will look different on a MacBook. At the top, you’ll see the Battery and Power Adapter panes. The first is for managing general battery settings.
Slightly dim the display while on battery power
Consider keeping this box checked to extend the lifespan of your MacBook’s battery.
This option allows your machine to wake from sleep and perform certain tasks in the background. During Power Nap, your Mac turns off the display and components that are not needed to perform the mentioned tasks.
The Battery preferences pane is pretty informative as it displays current battery charge status. You can add this to your menu bar by checking the Show battery status in menu bar box. If you switch to the Power Adapter preference pane, you’ll see several new options appear. You can check and try them all to maximize battery lifespan.
Schedule your Mac startups and shutdowns
There’s one button that makes your power management automatic. Hit the Schedule button at the bottom of the Energy Saver preferences to set your Mac activity hours. Use the drop-down menu to choose between Sleep, Restart, and Shutdown options. Choose the group of hours that suit you best and click OK. Now your Mac can perform certain tasks whenever you want.
We’ve described basic power management steps you can take in Energy Saver preferences. If you need help understanding each Energy Saver setting, just hit the little question mark at the bottom right corner of Energy Saver.
Found this useful? Don’t forget to share it with your fellow Mac users. And stay tuned for more MacKeeper blog updates featuring info that’ll make you feel like a pro macOS user.