How to Overcome Mac-Apple Shutting Down Suddenly

By | May 5, 2022

You’re working on an assignment, surfing the web, or doing some other important task. Suddenly, your Mac shuts down suddenly and apparently, for no reason. Usually, this is just a one-time occurrence and never happens again.

But if you’re dealing with a computer that usually shuts down without warning, you may have a bigger problem. Here are some troubleshooting tips and to help fix your Mac.

What To Do When Your Mac Keeps Turning Off

When you experience a sudden shutdown of your Mac, the first and most important step is to reboot it, then restart it again immediately. Doing this is necessary because the program does not always close properly during work.

To start over again, select Restart from the Apple menu in the upper-left corner. Unfortunately, simply rebooting your Mac may not solve the problem. In this case, Apple recommends resetting the computer’s Computer Management Controller (SMC).

SMC is a Mac subsystem with an Intel processor. It controls components such as battery charging, video mode switching, sleep and wake, LED indicators, and more.

Before resetting the SMC, Apple recommends taking the following steps, in order:

  • If your Mac isn’t responding, press and hold the power button until it turns off. Then press the power button again to turn on your Mac.
  • Press Cmd + Option + Esc to force stop any unresponsive apps.
  • Put your Mac into sleep mode by selecting Sleep from the Apple menu. Wake up computer after sleep.
  • Restart your Mac by selecting Restart from the Apple menu.
  • Shut down your Mac by selecting Shut Down from the Apple menu.

How to Reset SMC

Once you’ve run out of these steps, it’s time to reset your Mac’s SMC. The steps involved vary depending on whether your system has a removable battery. MacBooks that have non-removable batteries include MacBook Pro from 2009 and later, every MacBook Air, MacBook (Late 2009), and 12-inch MacBook from 2015 and newer.
There’s also a separate set of steps for any MacBook with the Apple T2 security chip. This is usually a computer from 2018 and newer.
If the battery cannot be removed:

  • Shut down your Mac.
  • Plug the MagSafe or USB-C power adapter into a power source and into your Mac.
  • Using the built-in keyboard, press Shift + Control + Option on the left side of the keyboard, then press the power button at the same time.
  • Release all keys, then press the power button again to turn on your Mac.

If the battery is removable, do the following:

  • Shut down your Mac.
  • Disconnect the MagSafe power adapter.
  • Remove the battery.
  • Press and hold the power button for five seconds.
  • Reconnect the battery power adapter and magSafe.
  • Press the power button to turn on your Mac.

On your iMac, Mac mini, or Mac Pro:

  • Shut down your Mac.
  • Unplug the power cord.
  • Wait 15 seconds.
  • Reconnect the power cable.
  • Wait five seconds, then press the power button to turn on your Mac.

For all Mac notebooks with a T2 chip:

  • Choose Shut Down from the Apple menu.
  • After your Mac shuts down, press and hold the right Shift key, left Option key, and left Control key for seven seconds. Then keep holding the keys while you press and hold the power button for seven seconds.
  • Release the three buttons and the power button, then wait a few seconds.
  • Press the power button again to turn on the Mac.

Keeping Your Mac Healthy

You can take a few steps to make sure your Mac keeps running smoothly. At least, you can know before the problem occurs.
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Monitor Your Battery

Rechargeable batteries don’t last forever. Your MacBook’s battery usage occurs in the form of charge cycles. Each battery is only good for a certain number of charge cycles. At that point, the battery runs out and you have to replace it.

You can see your Mac’s current battery cycle count by heading to the Apple menu and selecting About This Mac. Select System Report and then navigate to the Power section under Hardware. Under Battery Information, you’ll see the current Cycle Count.

The maximum number of cycles varies by model. Some early MacBooks offer only 300 cycle counts, while newer models typically last up to 1,000 cycles. A charge cycle means it uses all the battery power, no need for a single charge. For example, discharging from 100 to 50 percent of the battery, then charging back to 100 percent before discharging to another 50 percent, counts as one cycle.

When your battery reaches its maximum number of cycles, it’s time for a replacement.

More Third Party Apps

When your Mac is having trouble, there are plenty of free third-party apps for Mac to help guide you in the right direction

A great option when you want to find out more about Mac batteries is Battery Health. The app goes beyond cycle counts and describes information in less technical terms so you can track battery temperature, status, design capacity, and more. This app also shows how long your battery is

A great option when you want to find out more about Mac batteries is Battery Health. The app goes beyond cycle count and describes information in less technical terms so you can track battery temperature, status, design capacity, and more. The app also shows how long your battery will last on its current charge for various activities.

Checking your battery temperature is also important. A battery that overheats frequently indicates a bigger problem.

Reading Logs

The less you need to charge your battery, the longer it should last and the healthier your computer will stay. As such, battery-consistent apps can cause long-term damage to your investment.

The easiest way to see what apps are using the most battery power on your MacBook is to select the battery icon in the menu bar in the upper-right corner of the screen. Here you can see the Using Significant Energy application.

You should also use your Mac’s Activity Monitor, which shows the apps and services that are using the most CPU power. Go to Applications > Utilities > Activity Monitor to open it. Pay close attention to the items under the CPU and Energy tabs, as large numbers here can be a pain.

Save Computer Energy

You should also check your computer’s Energy Saver settings, which are located in the System Preferences menu. For most users, the default settings are appropriate. Click Restore Defaults for those settings.


Calibrating Your MacBook Battery

You should calibrate the battery on older Macs once a month. According to Apple, MacBook models released after mid-2009 are pre-calibrated and do not require calibration.

Keeping your MacBook battery properly calibrated is the best way to keep an eye on how much power your machine has left before shutting down. If the battery is not calibrated properly, the laptop may shut down or sleep without warning. When calibration is complete, you’ll get a more accurate picture of how much battery power you really have left.

What If Your Mac Keeps Shutting Down Suddenly?

If your Mac still turns off unexpectedly even after using the troubleshooting tools mentioned above, it’s time to visit an Apple retail store, or an approved service center. You can also contact the company through Apple Support.

For Macs that are currently out of warranty, another option to consider is a third-party repair center. This can often fix the problem for a lot less than going straight through Apple

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