Is your MacBook Air or MacBook Pro running out of battery? Wondering why your MacBooks battery is not lasting as long as it used to? Here are some tips to extend battery life of your macbook.
1. Turn off backlit keyboard
While it’s a great feature, the backlit keyboard on Macs can shave precious minutes off your runtime.
To turn off the backlit keyboard:
- Hit the F5 key repeatedly until the on-screen icon shows no bars lit.
- Open System Preferences.
- Select Keyboard.
- Uncheck the box marked “Automatically illuminate keyboard in low light.”
- Underneath where it says “Turn off when computer is not used for,” move the slider to 5 secs.
2. Turn off Spotlight indexing
Apple’s Spotlight, which instantly returns search results of everything on your hard drive, is very useful. But the way it works consumes CPU resources. You can prevent Spotlight from searching your drive.
- Click System Preferences.
- Select Spotlight > Privacy.
- Press the + button and add your hard drive, or drag the hard drive into the list.
3. Turn Off Bluetooth and Wi-Fi
Disabling your notebook’s wireless radios is one surefire way to eke out more juice. While turning off Wi-Fi may not be practical in every situation—especially if you need to access the Internet often—it will give you more endurance if you’re using your laptop to watch a movie on an airplane.
To turn Bluetooth off:
- Click the Bluetooth icon in the upper right-hand corner of the desktop.
- Select Turn Bluetooth Off. The icon should now be grayed out.
- Select System Preferences > Bluetooth.
- Uncheck the box marked On.
To turn Wi-Fi off:
- Click on the Wi-Fi icon in the upper right-hand corner of the desktop.
- Select Turn Wi-Fi Off. The icon should change from a number of concentric arcs to an outline that looks like a baseball diamond.
- Open System Preferences > Network.
- Uncheck the box marked Turn Wi-Fi Off.
4. Tweak Energy Saver preferences
Changing these settings will cause your Mac to power down energy-consuming components—such as the screen and the hard drive—sooner during periods of inactivity.
- Click System Preferences.
- Open Energy Saver.
- Select the Battery tab.
- Move the slider bars for Computer Sleep and Display Sleep as far left as you believe is comfortable. You probably don’t want your computer going to sleep after just one minute but don’t want to leave it on indefinitely either.
- Below, select the following checkboxes: Put the hard disk(s) to sleep when possible. Slightly dim the display when using this power source. Automatically reduce brightness before display goes to sleep.
5. Adjust Screen Brightness
At full brightness, the 13-inch MacBook Air’s screen measures an average of 285 lux. At 40-percent brightness (6 bars), it’s just 29 lux, but still very viewable. And brightness eats power.
To lower screen brightness:
- Tap F1 repeatedly until the brightness is at a level just tolerable enough to view comfortably.
- Open System Preferences > Displays.
- Adjust the Brightness slider to the level you’re most comfortable with.
6. Turn off Time Machine
Time Machine makes it very easy to back up all the data on your Mac, but copying that data to another drive consumes system resources. Fortunately, you can turn off Time Machine while your laptop is running on battery power.
- Select System Preferences.
- Select Time Machine > Options.
- Uncheck “Back up while on battery power.”
7. Quit runaway applications
Occasionally, an app will consume an inordinate amount of system resources even when not in use. Not only does this impact your notebook’s performance, but it also seriously degrades battery life.
- Open the Applications folder > Utilities folder
- Click Activity Monitor.
- Select the CPU tab.
- Select All Processes in the drop-down menu.
- Sort the apps by CPU percentage.
- Look for any app that is consuming a large percentage, such as more than 70 percent.
- Select that app and press the Quit Process icon.