7. Background App Refresh
Certain apps on your iPhone are allowed to use your Wi-Fi or cellular data connection to download new content even when you’re not using them. 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 that Apple calls Background App Refresh.
How To Fix Background App Refresh
Go to Settings -> General -> 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. If you’re like me, you’ll be able to turn off almost every app on the list.
As you scroll through each app, ask yourself this question: “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 more battery life each time you do.
8. Keep Your iPhone Cool
According to Apple, the iPhone, iPad, and iPod are designed to work from 32 degrees to 95 degrees fahrenheit (0 degrees to 35 degrees celsius). What they don’t always tell you is that exposing your iPhone to temperatures above 95 degrees fahrenheit can permanently damage your battery.
If it’s a hot day and you’re going for a walk, don’t worry about it – you’ll be fine. What we’re talking about here is prolonged exposure to extreme heat. Moral of the story: Just like your dog, don’t leave your iPhone in a hot car. (But if you had to choose, save the dog).
Can Cold Weather Damage My iPhone Battery?
Low temperatures won’t damage your iPhone battery, but something does happen: The colder it gets, the faster your battery level drops. If the temperature gets low enough, your iPhone might stop working entirely, but when it warms up again, your iPhone and battery level should return to normal.
9. Disable Unnecessary Visual Effects
iPhones are beautiful, from the hardware to the software. We understand the basic idea of manufacturing the hardware components, but what allows the software to display such beautiful images? Inside your iPhone, a tiny piece of hardware built into the logic board called a Graphics Processing Unit (or GPU) gives your iPhone the power to display its beautiful visual effects.
The problem with GPUs is that they’ve always been power-hungry. The fancier the visual effects, the faster the battery dies. By reducing the strain on your iPhone’s GPU, we can significantly increase the life of your battery. In iOS 10, you can accomplish everything I used to recommend in a few different tips by changing one setting in a place you probably wouldn’t think to look.
Go to Settings -> General -> Accessibility -> Reduce Motion and tap the switch to turn it on.
Aside from the parallax wallpaper effect on the home screen, you probably won’t notice any differences and you’ll save a significant amount of battery life.