One of the best things about the Huawei Mate 8 is the exceptional battery life. Not only did Huawei put a massive 4,000 mAh battery in the Mate 8, but they also have a few software tricks. You might not like one of the tricks.

The Mate 8 can kill apps when the display is turned off. This saves battery, but it can be annoying when you miss notifications or apps open slowly when you unlock your phone. The good news is you can choose which apps are killed and which apps always stay running. Let's do this.

1. Go to Settings > Advanced Settings
2. Select Battery manager > Protected apps
3. You should see a list of all the apps on your phone

Every app that is labeled as "Protected" will keep running when the display is turned off. Any app that is "Not protected" can be killed when the display is off.

You'll want to protect apps like messengers and music players, because they do a lot for you in the background. Go through the list and make your choices.