Tweak 4: Background App Refresh
You may not realise this but Apps on your iPhone are downloading new content via Wi-Fi or cellular data connection in the background. They are slowly devouring your battery life and nibbling away at your data plan without you even being aware of it. You can save a significant amount of battery life and some of your data plan by limiting the number of apps that are allowed to use this feature.
How To Fix Background App Refresh
1. Tap Settings
2. Tap General
3. Tap Background App Refresh.
At the top, you’ll see a toggle switch that turns off Background App Refresh entirely. I don’t recommend you do this, because Background App Refresh can be a good thing for certain apps.
As you scroll through each app, ask yourself “Do I want this app to be able to download new information even when I’m not using it?” If the answer is yes, leave Background App Refresh enabled. If not, turn it off and you’ll be saving battery life and data usage.
Tweak 5: Disable Unnecessary Visual Effects
The iPhone has some really cool effects from the way icons and groups zoom in and out through to the impressive parallax that gives a 3D effect to the screen. The downside to these stunning visual effects is that it eats into battery life. Reducing these effects reduces the use of the power hungry graphic processing unit. In my case it also gives me motion sickness but either way it is something worth avoiding if you want your battery to last all day.
The visual effects are actually controlled under the Accessibility settings which is probably one of the last places you would think to look. However it is dead simple to turn off once you know where to go.
How To Turn Off Unnecessary Visual Effects
1. Tap Settings
2. Scroll down and tap General
3. Tap Accessibility
4. Scroll down and tap Reduce Motion
5. Tap the switch to turn it on
More tweaks on the next page.