How to Fix Bad Battery On MacOS Mojave

MacOS Mojave update is now available for public users and I know may Mac users have already updated their Mac to the latest version. Although the Mojave update comes with a bunch of new features, the common problem still persists on this latest build. One of the most common issues is the poor battery life after the upgrade.

Many MacBook Air, MacBook, MacBook Pro users have been seeing fast battery drain when their MacBook is sleeping. Some of the users said that their MacBook drained 5% per hour in sleep mode. Other users reported the battery life on their MacBook Pro is significantly down after updating to macOS Mojave, specifically when they were surfing the internet.

If you are in the same trouble, here is how to fix bad battery life on your MacOS Mojave.


Fix Bad Battery Life in Sleep Mode

When closing the lid on your MacBook, it will go into sleep mode and only eat up a very little battery. However, it seems that the sleep mode in MacOS Mojave isn’t working for all users, causing battery drain if the device is not connected to the charger.

So, the first thing you should do if you experience the issue is to restart your MacBook. This method can resolve problems that odds battery life issues. Although it’s not a sure fix, it might be helpful.

In previous versions, you can run a line of command in Terminal to disable Wi-Fi for Find My Mac when your device is in the sleep mode, but some reports indicate it is not working in this new version.

If a restart doesn’t help you, you should try the upcoming fixes listed below, but you can shut down your MacBook or until there is an update available. While it’s a frustrating step, it’s the only way to stop fast battery life drain while your Mac is sleeping.  You can also jump to the next section to fix bad macOS Mojave battery life before doing this step.

Apple might be issuing a MacOS 10.14.01 update for problems. But, if nothing else works, you can try downgrading your MacBook to lower macOS High Sierra or clean install mAcOS Mojave again.

To downgrade to MacOS High Sierra:

  • Make sure you have a High Sierra backup made before you upgrade to Mojave version.
  • Connect your Time Machine Drive, or connect to Wi-Fi if it’s a Wireless Drive.
  • Power your Mac off.
  • Power it back on and press& hold Command + R keys until Recovery Mode appears on your Mac screen.
  • Click on Restore From Time Machine Backup section
  • Choose Continue.
  • Select the backup source if there is more than one Time Machine Drive.
  • Choose the Time Machine Backup that you previously made right before upgrading your computer. You will then see the operating system version. Search for macOS 10.13 or another macOS 10.13.x build.


How to Fix Battery Life Issues in MacOS Mojave

Well, we will now show you two things you can try to fix poor battery life on your MacOS Mojave. Apart from that, we’ll also share a few tips to help you improve the battery life on your Mac.

Reset PRAM and NVRAM

The first thing you should do is resetting PRAM and NVRAM to fix some issues. Keep in mind that although the process will not delete your data, you have to go back and then change screen resolution and other settings. To do so:

  1. Switch your Mac off
  2. Turn your MacBook back on
  3. Quickly press and hold the Command + Option+ P+R keys altogether right after you hear the startup sound.
  4. Hold them until your Mac reboots and you hear the startup sound again.

If you are using a 2016 MacBook Pro or higher, you need to hold these keys for 20 seconds as soon as your MacBook Pro turns on.

Reset SMC

Another issue you should try is resetting the SMC on your MacBook. Although this method is not guaranteed, sometimes it can help fix poor battery issues on your computer. It varies across the MacBook models, but you can use these directions for most of these models.

  1. On your Mac, click on Apple menu > Shut Down.
  2. Once your Mac shuts down completely, press Shift-Control-Option keys on the left side of the keyboard, and then quickly press the Power button. Hold all the buttons for about 15 seconds. If you use a MacBook Pro supporting Touch ID, the Touch ID button is the Power button as well.
  3. Next, release all buttons.
  4. Press the Power button again to Power on your MacBook.

Update Your Apps


A rogue app might sometimes be eating up too much battery or preventing your MacBook from sleeping even when you close the lid. So, you should check to see if there is an app that is using the most battery. The simplest way to do so is clicking on the battery icon to check if there are any apps eating up the most battery life now. In the Activity Monitor, simply click on one of the installed apps to find out which apps are using the most battery. If the screen brightness is taking up your battery life, it will also show up here.

After a check, if you find out that an app is using too much of your MacBook battery, you should check if there is an update available for macOS Mojave. It can fix many issues. If there is an app like Chrome that is eating up your battery life too much, you can use Safari browser as an alternative.

These are possible solutions fox bad battery life on MacOS Mojave. Let’s know in the comment if you have any question.


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