For example, the following command would put a Mac to sleep after 10 minutes: sudo shutdown -s +10. Hit Return to start the timer. Add another space, and finally, type + icon, followed by the number of minutes you want to set the timer for. To put your Mac to sleep, type: -s. To restart your Mac, type: -r.Open Energy Saver preferences for me. It controls backlighting, hard disk spin down, sleep and wake, some charging.On your Mac, choose Apple menu > System Preferences, then click Energy Saver. This app is very versatile, but if you master the basic usage first and then learn the detailed usage as needed, you will not get lost.If your MacBook Pro is shutting off when disconnected from its charger, you are most likely frustrated and concerned about what is causing this problem.As the name implies, it is responsible for power management of the computer. Using that will prevent your Mac from sleeping for one hour, as there are 3600 seconds in an.How to use the Mac sleep control app 'Amphetamine' I will explain how to use the Mac sleep control application 'Amphetamine' in an easy-to-understand manner with illustrations.
Control How Long To Go To Sleep Mac To SleepIf the condition of your battery says anything other than Normal, your issue might be with your internal battery.Also, check to make sure that the connection between your computer and charging cable is clean and in good order. Check on your battery health by holding down the Alt (Option) key and then clicking on the battery symbol from the top menu of your screen. Start With the Small StuffIf this problem happens to you, start with a quick check on small issues that might be causing your computer to turn off when unplugged. One of the solutions below should work to get your computer operating normally again and prevent it from shutting off when the power cable is unplugged.If none of these solutions work, you may have to take your MacBook Pro into an Apple store or other computer repair shop to diagnose and fix the issue. What to Do if This Problem Happens to YouThe good news about this problem is that it is usually not as big of a deal as it first seems. Computers affected by this issue seem to only work correctly when connected to a power cord, which limits the functionality of your MacBook.What makes this problem seem even more strange is that there are usually no signs or symptoms leading up to the computer shutting down unexpectedly.You would probably think this could be a sign of a bad battery, but many who experience this issue have batteries that are in good condition and operating normally. Reset SMC and Cycle BatteryA common cause of this problem is due to leaving your computer plugged in a lot of the time.This can cause the System Management Controller (SMC) to believe the power level is below a set threshold resulting in it triggering the computer to go into deep sleep mode and shutting off when unplugged.You can fix this by resetting the SMC and letting the battery go through a few complete charging cycles. You might need to get a new cable but do not do so until running through all of the steps listed here. Inspect your charging adapter for any signs of damage. Install mods for farming simulator 2015 macA full battery cycle is from full charge to no charge, so let your battery fully charge and then operate it without connecting to power until it dies. Hold these four keys for about 10 seconds.If you have an older MacBook with a removable battery, remove the battery before running through the SMC reset steps above.Next, let your battery run through a few complete battery cycles. While holding Shift, Control, and Option press the power button. Press the Shift, Control, and Option keys at the same time. If none of these steps worked, you might need to take your computer into a repair shop or get a new charging adapter and/or battery.Also, run through the resets listed above a few times if the problem isn’t fixed on the first attempt. Final ThoughtsHopefully, one of these steps above helped to fix your problem of what to do when your MacBook Pro shuts down after being unplugged.I’ve had this happen to an old MacBook I had and the PRAM reset did the trick. Release keys and allow your computer to start up normally.If this didn’t work, complete the steps again but wait until you hear 3 startup chimes instead of 2.
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