After upgrading to the latest macOS version – Mojave, one of the most common issues for Mac users is the fast battery drain. Usually, this problem is relevant to MacBook, MacBook Air and MacBook Pro users, and they are looking for a permanent solution. If you have such problem, we are here to help you.
What you should do first is to reset PRAM (volatile random-access memory) and NVRAM (nonvolatile random-access memory). This operation will reset some of your Macbook or MacBook Pro settings and will help you fix some problems.
Be aware that none of your data will be deleted, apart from the fact that you will have to change the screen resolution, speaker, and several other settings.
Follow the steps below to reset the PRAM and NVRAM properly:
- Turn on your MacBook Pro.
- Press and hold Command+Option+P+R keys simultaneously right after you hear the startup sound.
- Keep holding the Command+Option+P+R keys until you hear the startup sound again which means that your computer reboot is completed.
In case your MacBook Pro is a 2016 or a newer edition, you should hold the above-mentioned keys for 20 seconds as soon as you turn your MacBook Pro on.
Another thing you can do is to Reset the SMC (System Management Controller) on your MacBook, MacBook Air or MacBook Pro. There is no guarantee that the issue will disappear but it’s definitely worth trying.
- Open the Apple Menu and select Shut Down.
- Press Shift+Control+Option on the left side of the built-in keyboard and the Power button simultaneously for 10 seconds (if you use a MacBook Pro with Touch ID, the Touch ID button is also the power button).
- Release the keys.
- Press the Power button again to turn on your Mac.
The last but not the least important thing you should do to cut the battery drain issue, is to update your applications. In some cases, it is an app may use much battery life or prevent your MacBook from sleeping after closing the lid.
This is how to check which of your applications uses the most energy:
- Click the Battery icon.
- Check which of your apps uses the most battery life in the historical graph in the Activity Monitor. This also shows you if the screen brightness is using up battery life.
- When opening an app, check if there is an update ready for macOS Mojave (a notice about the update will be displayed). Also, if there is an app that uses too much of your battery life, you can change it with a similar one, like switching from one to another browser, for instance.
In case none of our advices did not help you out, try contacting Apple support for further assistance, as the problem might be different.