How to Fix Bad macOS Mojave Battery Life

This guide will show you how to fix bad macOS Mojave battery life after upgrading to the latest macOS update. This is one of the common macOS Mojave issues that some users encounter within hours and days of installing macOS 10.14 on their MacBook, MacBook Air, and MacBook Pro.

Assuming the MacBook Pro sleeps with a number of users, we’re seeing macOS Mojave battery drain issues. Saying that their MacBook is draining 5% per hour in sleep mode.

Another user wrote, “This morning I just updated my OS to Mojave and started my laptop. It was at full charge when I left the house. 2 hours after using it, the battery percentage dropped to 40%”, and these are just a few examples. Other users have shown that MacBook Pro battery life significantly down Especially when browsing the web when on macOS Mojave.

Here’s what you can do to troubleshoot these macOS Mojave battery life issues on your Mac and how to downgrade if you can’t fix it or wait for Apple to release an update.

How to Fix Bad macOS Mojave Battery Life in Sleep Mode

When you close the lid of your MacBook or MacBook Pro, it should go to sleep and use very little battery. macOS Mojave sleep mode doesn’t work for all users, resulting in battery drain when the device is unplugged or in your bag.

The first thing to try if you experience this problem is to restart your MacBook or MacBook Pro. This can fix issues that could be causing annoying and weird battery life issues. It’s not a sure fix, but it might help.

In the past, users could run a line of code in Terminal to turn off WiFi for Find My Mac while the device was sleeping, but reports indicate that this time it didn’t work.

In cases where restarting doesn’t fix this issue, you can try the fixes listed below in the battery life section, but simply shutting down your MacBook or MacBook Pro until an update is available. This is a frustrating step, but it’s a way to avoid running out of battery life while you sleep. Skip to the next section to try fixing other macOS Mojave battery life issues before taking this step.

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Apple may need to make an edit to fix this issue. It may contain a specific mention or be part of other bugs and fixes mentioned in the release notes.

If nothing else works, you can try downgrading to macOS High Sierra or doing a clean install of macOS Mojave.

How to Fix macOS Mojave Battery Life Issues

Here’s how to fix macOS Mojave battery life issues on your own.

We’ll show you two things you can try to fix bad macOS Mojave battery life. In case the question is how you use it, we’ll also share a few tips that can help you get better battery life on your Mac.

Reset PRAM and NVRAM

You can reset PRAM and NVRAM which resets some of your Macbook or MacBook Pro settings and this can help fix some issues. This will not delete your data, but you will have to go back and change the speaker, screen resolution and other settings.

  1. Shut down your Mac
  2. Open your MacBook Pro
  3. Press the and keys immediately after the startup sound.
  4. Keep it pressed until the computer restarts and you hear the startup sound again.

If you have a 2016 MacBook Pro or newer, you should press and hold these keys for 20 seconds as soon as you turn on your MacBook Pro.

reset SMC

Another problem you can try is resetting the SMC on your MacBook, MacBook Air or MacBook Pro. This is not a guaranteed fix, but it can help resolve some battery issues in some cases.

This varies by MacBook models, but you can use these instructions for most of these models;

  1. Choose Apple menu > Close.
  2. After your Mac shuts down, press the Shift-Control-Option keys on the left side of the built-in keyboard, then simultaneously press the power button. Press and hold these keys and the power button for 10 seconds. If you have a MacBook Pro with Touch ID, the Touch ID button is also the power button.
  3. Release all keys.
  4. Press the power button again to turn on your Mac.

If you’re using a 2018 MacBook Pro, follow the instructions on this pagethis can help you.

Update Your Apps

Check and update or replace apps that use a lot of energy.

Check and update or replace apps that use a lot of energy.

Sometimes a rogue app might be using too much battery life or preventing your MacBook from sleeping when you close the lid. You can check which Apps are using the most energy. The easiest way to do this is to see the apps that are using the most battery life now. To see which apps are using the most battery life in a historical graph in Activity Monitor. It also tells you if screen brightness is draining your battery life.

If an app is using too much of your energy, you should see if there is an update ready for macOS Mojave. This can solve many problems. If an app like Chrome is using too much of your battery life, you might want to use Safari for a while.