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Using Energy Saver

From: Mac OS X Lion Essential Training

Video: Using Energy Saver

Over the years Apple has made efforts to produce devices that are more energy-efficient but the energy efficiency of your Mac is only as good as the energy settings that you use. We look at configuring those settings in the Energy Saving system preference, so back to System Preferences > Energy Saver. Now what you see in the Energy Saver tab depends on the kind of Mac you are using. If you have a desktop Mac you see one set of settings as you don't have to worry about battery settings. On laptops-- I am recording this on a laptop-- you'll see settings for both Battery and for Power Adapter.

Using Energy Saver

Over the years Apple has made efforts to produce devices that are more energy-efficient but the energy efficiency of your Mac is only as good as the energy settings that you use. We look at configuring those settings in the Energy Saving system preference, so back to System Preferences > Energy Saver. Now what you see in the Energy Saver tab depends on the kind of Mac you are using. If you have a desktop Mac you see one set of settings as you don't have to worry about battery settings. On laptops-- I am recording this on a laptop-- you'll see settings for both Battery and for Power Adapter.

You can figure in each separately because with the battery you want to be miserly with the power and not so much when the Mac is plugged in. So let's look through the options. You have the option to put your computer to sleep. Currently I have this set to Never, which is not energy-efficient. If I were using a battery on this I would probably set it to about 15 minutes. You can also sleep the display separately. So knock that down to say 5 minutes or so. What will happen then is if you're not doing something on your computer, the display will go to sleep, which saves power.

After 15 minutes the entire computer goes to sleep, which really save a lot of power, but now we are going to set these to about an hour. And as you see it will warn you for doing something that isn't terribly energy-efficient. You can also put your hard disk to sleep when possible. Again, this saves power but if you do this and they go to sleep it takes your Mac a little bit longer to boot back up because the hard drive has to spin up. You can also slightly dim the display. Depending on how cheap you want to be with your power, this can or cannot be a good option.

I often find when I have this set that I have to press the Brightness button to increase the brightness on my laptop because I find it dims down just a little bit too much. And you can automatically reduce the brightness for the display it goes to sleep at which is fairly intuitive. And you can also automatically restart your computer if the computer freezes. If while you're away, your computer freezes up, this will cause it to restart automatically. This can be helpful if you have a computer at home and one on the road and you need to communicate with that computer at home and you have had some kind of power failure or freeze.

That will bring it right back up. Now at the top there's an option that you may not see. This laptop I'm using has two graphics cards. One of them is a high resolution graphics card and it uses more power. It also has a low resolution graphics card that doesn't use nearly so much power. Using this setting it will choose which one to use based on how much you want to save your battery life. So if I turn this off it will always use the high-performance card instead of switching between the two cards.

Now with Power Adapter because you are plugged into power you can be much more free with your power settings. So you can have your computer sleep never ever. You can change the display, so maybe it takes an hour and 45 minutes before it goes to sleep. If for some reason I have got to put hard drive to asleep when possible. What do I care? I am using power? And I am going to turn that off. Wake for internet access is a reasonably good idea. Let's say for example you have walked away from your computer. It's the middle of the night, the computer has gone to sleep, and something's happening on the Internet that your computer needs to know about, let's say that you've got that tweet for example and your Twitter client needs to get.

It will wake to get that or you have your e-mail client set up to automatically download your e-mail every half hour or so. So it will wake in order to do that and we've gone through these other settings here. It's possible that if you have an uninterruptible power supply, also knows as UPS, you will see an option for that as well here. If you have plugged that UPS into your Mac via a USB cable. This lets you check the status of the battery. One other thing. Check Schedule at the bottom and you see that you have the option to start or wake your Mac at a certain time every day.

Also you have an option to have it go to sleep or shut down or restart at a certain time every day. This is a good power saving tip. If you routinely work on your Mac from say 9 in the morning until 6 at night and then you walk away, there's no reason to leave that Mac going all night unless you need it to do something. This can set up a schedule so that it will say wake up at 7:30 in the morning. It will automatically launch Mail, it will grab your e-mail for you, maybe it launches Safari and it will grab your Safari pages for you, so that when you sit down at your computer it's ready to go and then at 10 o'clock that night maybe it shuts itself off and you're not using up power unnecessarily.

For now I will turn those off. Click OK, quit System Preferences, and that's Energy Saver.

Show transcript

This video is part of

Image for Mac OS X Lion Essential Training
Mac OS X Lion Essential Training

72 video lessons · 30852 viewers

Christopher Breen
Author

 
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  1. 1m 26s
    1. Welcome
      53s
    2. Using the exercise files
      33s
  2. 4m 42s
    1. Installing Lion
      4m 42s
  3. 44m 44s
    1. Touring the Finder
      10m 19s
    2. Launching and working with apps
      4m 22s
    3. Sorting and starting apps with Launchpad
      3m 13s
    4. Organizing workspaces with Mission Control
      4m 35s
    5. Using trackpad gestures
      8m 22s
    6. Using mouse gestures
      2m 22s
    7. Understanding file saving in Lion
      4m 35s
    8. Using Text to Speech
      3m 9s
    9. Installing software
      3m 47s
  4. 26m 51s
    1. Personalizing the interface
      7m 31s
    2. Staying current with Software Update
      4m 13s
    3. Configuring Mail, Address Book, and iCal
      5m 2s
    4. Setting up printers
      3m 39s
    5. Backing up with Time Machine
      6m 26s
  5. 10m 49s
    1. Finding files with Spotlight
      5m 16s
    2. Digging deeper with Finder searches
      5m 33s
  6. 39m 6s
    1. Configuring basic personal preferences
      11m 14s
    2. Optimizing Mission Control preferences
      3m 42s
    3. Configuring basic Audio and Video preferences
      4m 34s
    4. Adjusting Input Device preferences
      7m 45s
    5. Configuring Bluetooth input devices
      2m 36s
    6. Modifying Date & Time Preferences
      2m 38s
    7. Getting on the internet
      3m 56s
    8. Using an alternate startup disk
      2m 41s
  7. 3m 22s
    1. Understanding Dashboard widgets
      3m 22s
  8. 23m 20s
    1. Navigating the interface
      6m 30s
    2. Filtering junk mail and sorting messages with rules
      4m 22s
    3. Scheduling appointments with iCal
      6m 38s
    4. Organizing contacts with Address Book
      5m 50s
  9. 37m 5s
    1. Basic word processing in TextEdit
      7m 56s
    2. Using Dictionary
      2m 51s
    3. Preview: Working with images
      6m 20s
    4. Preview: Working with PDFs
      6m 13s
    5. Installing and managing fonts
      5m 37s
    6. Creating quick notes using Stickies
      3m 24s
    7. Using Calculator
      4m 44s
  10. 34m 27s
    1. Navigating the web
      4m 49s
    2. Working with bookmarks
      7m 15s
    3. Adding and reading RSS feeds
      2m 38s
    4. Using Reading List
      3m 7s
    5. Saving web pages and creating web clips
      1m 15s
    6. Using Safari to search the web
      3m 13s
    7. Opening local files in Safari
      2m 33s
    8. Working with Safari's preferences
      4m 33s
    9. Configuring privacy settings
      5m 4s
  11. 13m 45s
    1. Playing media
      9m 3s
    2. Recording
      4m 42s
  12. 18m 26s
    1. Video chatting in FaceTime
      5m 26s
    2. Text and video messaging in iChat
      9m 6s
    3. Shooting videos and pictures in Photo Booth
      3m 54s
  13. 12m 46s
    1. Automating complex tasks
      12m 46s
  14. 13m 55s
    1. Monitoring system performance
      3m 20s
    2. Setting up a Windows installation in Boot Camp
      3m 49s
    3. Formatting, partitioning, and repairing storage devices
      6m 46s
  15. 15m 55s
    1. Understanding sharing
      4m 59s
    2. Sharing files on a network
      3m 23s
    3. Screen sharing with a remote computer
      4m 7s
    4. Sending files with AirDrop
      3m 26s
  16. 38m 47s
    1. Modifying Language & Text settings
      6m 38s
    2. Optimizing Security & Privacy settings
      6m 24s
    3. Configuring access for for the disabled
      7m 23s
    4. Using Energy Saver
      4m 42s
    5. Adding and changing users
      6m 19s
    6. Configuring Parental Controls
      7m 21s
  17. 18m 33s
    1. Preventive measures: Creating a Lion boot drive
      7m 40s
    2. Understanding and configuring permissions
      3m 6s
    3. Troubleshooting techniques
      7m 47s
  18. 6m 11s
    1. Techniques for using the Mac efficiently
      5m 22s
    2. Next steps
      49s

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